Unnamed: 0.1
int64
0
654
term
stringlengths
2
50
term_dictionary
stringlengths
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link
stringlengths
7
128
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stringclasses
8 values
term_wikidata
stringlengths
2
50
wikidata_item
stringlengths
33
41
wikidata_label
stringlengths
0
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definition
stringlengths
1
739
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ro
stringclasses
2 values
wikidata_subclass
listlengths
0
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Frequency
int64
12
1.86M
300
ketoconazole
no_term_y
no_link
no_source
ketoconazole
http://www.wikidata.org/entity/Q407883
Ketoconazole
no_definition
chemical compound
[ "group of stereoisomers" ]
[ "azole", " heterocyclic compound" ]
r
[ "n" ]
171
301
kinetic energy
Kinetic energy
https://ggweather.com/met10/Glossary.pdf
essen_meteo
kinetic energy
http://www.wikidata.org/entity/Q46276
kinetic energy
The energy within a body that is a result of its motion.
energy of a moving physical body
[ "form of energy" ]
[ "scalar quantity", " mechanical energy", " physical quantity" ]
r
[ "n" ]
14,254
302
knot
KNOT
https://www.weather.gov/otx/Full_Weather_Glossary
weathergow_fwg
knot
http://www.wikidata.org/entity/Q128822
knot
One nautical mile per hour (1.15 mph).
unit of speed
[ "UCUM derived unit", " unit of speed" ]
[]
r
[ "n" ]
3,307
303
Kriging
Kriging
https://glossary.ametsoc.org/wiki/Category:Terms[PAGE_INFO]glossary_ametsoc_org_5.html
ametsoc_g
Kriging
http://www.wikidata.org/entity/Q225926
kriging
no_definition
method of interpolation based on Gaussian process governed by prior covariances
[ "multivariate interpolation", " method", " linear regression" ]
[ "Gaussian process" ]
r
[ "n" ]
7,685
304
Kuroshio
Kuroshio
https://glossary.ametsoc.org/wiki/Category:Terms[PAGE_INFO]glossary_ametsoc_org_5.html
ametsoc_g
Kuroshio
http://www.wikidata.org/entity/Q53842
Kuroshio Current
no_definition
ocean current on the west side of the North Pacific Ocean
[ "ocean current" ]
[]
r
[]
4,725
305
Kyoto Protocol
Kyoto Protocol
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2841?rskey=iEUiql&result=1199
oxford_adow
Kyoto Protocol
http://www.wikidata.org/entity/Q47359
Kyoto Protocol
The treaty drawn up at the Kyoto Conference in December 1997, as part of the *Framework Convention on Climate Change, for the limitation of emissions of six ... ...
international treaty to reduce greenhouse gas emissions
[ "environmental protocol" ]
[]
r
[ "n" ]
1,073
306
La Niña
LA NIÑA
https://www.weather.gov/otx/Full_Weather_Glossary
weathergow_fwg
La Niña
http://www.wikidata.org/entity/Q642867
La Niña
The opposite of El Niño, when a major cooling occurs in the equatorial waters in the Pacific Ocean which is characterized by shifts in "normal" weather patterns.
coupled ocean-atmosphere phenomenon that is the counterpart of El Niño
[ "El Niño Southern Oscillation", " type of meteorological phenomenon" ]
[ "meteorological phenomenon" ]
r
[ "n" ]
19,552
307
lamellipodia
no_term_y
no_link
no_source
lamellipodia
http://www.wikidata.org/entity/Q3092607
lamellipodium
no_definition
A thin sheetlike process extended by the leading edge of a migrating cell or extending cell process; contains a dense meshwork of actin filaments.
[ "cellular component" ]
[]
r
[ "plasma membrane bounded cell projection" ]
1,028
308
laminar flow
laminar flow
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2848?rskey=4V4Ram&result=1207
oxford_adow
laminar flow
http://www.wikidata.org/entity/Q189452
laminar flow
Non-turbulent flow, in which a fluid moves steadily and smoothly across a surface along *streamlines that everywhere lie in parallel sheets.... ...
flow where fluid particles follow smooth paths in layers
[ "flow type" ]
[ "fluid flow" ]
r
[ "n" ]
1,878
309
land breeze
land breeze
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2849?rskey=4V4Ram&result=1209
oxford_adow
land breeze
http://www.wikidata.org/entity/Q31374425
land breeze
A localized, night-time wind that blows off the land, and is created by the temperature (and hence pressure) differential between land and sea. It is the counterpart to the ... ...
[]
[]
r
[ "n" ]
1,043
310
Landsat
LANDSAT
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2851?rskey=4V4Ram&result=1210
oxford_adow
Landsat
http://www.wikidata.org/entity/Q849791
Landsat program
A series of satellites launched by the United States beginning in 1972, known as Earth Resources Technology Satellites (ERTS... ...
American network of Earth-observing satellites for international research purposes
[ "NASA program" ]
[]
r
[]
17,019
311
lapse rate
lapse rate
https://www.macmillanlearning.com/college/us/product/Earths-Climate/p/1429255250
ec_pf3
lapse rate
http://www.wikidata.org/entity/Q66900467
lapse rate
The rate at which temperature falls with ele- vation in the atmosphere, averaging 6.5 8 C of cooling for each kilometer of altitude, but more for dry air and less for moist air.
Vertical rate of change of temperature in atmosphere
[]
[ "spatial gradient" ]
r
[ "n" ]
7,620
312
latent heat
Latent heat
https://ggweather.com/met10/Glossary.pdf
essen_meteo
latent heat
http://www.wikidata.org/entity/Q207721
latent heat
The heat that is either released or absorbed by a unit mass of a substance when it undergoes a change of state, such as during evaporation, condensation, or sublimation.
released or absorbed energy during a constant-temperature process
[]
[ "physical quantity", " heat" ]
r
[ "n" ]
30,008
313
Latitude
Latitude
https://glossary.ametsoc.org/wiki/Category:Terms[PAGE_INFO]glossary_ametsoc_org_5.html
ametsoc_g
Latitude
http://www.wikidata.org/entity/Q34027
latitude
no_definition
angle between zenith and a plane parallel to the equator
[ "geographic coordinate system" ]
[ "angle", " physical quantity" ]
r
[ "n" ]
105,131
314
level
level
https://www.macmillanlearning.com/college/us/product/Earths-Climate/p/1429255250
ec_pf3
level
http://www.wikidata.org/entity/Q3686031
concentration
The concentration of CO 2 in the atmosphere (280 ppm) that existed for several thousand years before the Industrial Revolution.
type of physical property; the abundance of a constituent divided by the total volume of a mixture
[ "physical property" ]
[ "stage", " abstract entity", " setting" ]
o
[ "intensive quantity", "volumetric quantity" ]
733,721
315
levoglucosan
no_term_y
no_link
no_source
levoglucosan
http://www.wikidata.org/entity/Q6535767
levoglucosan
no_definition
chemical compound
[ "type of chemical entity" ]
[ "aldopyranose" ]
r
[ "n" ]
1,789
316
Lf
Lf
https://glossary.ametsoc.org/wiki/Category:Terms[PAGE_INFO]glossary_ametsoc_org_5.html
ametsoc_g
Lf
http://www.wikidata.org/entity/Q17156810
low frequency
no_definition
the 30-300 kHz range of the electromagnetic spectrum
[ "ITU radio band" ]
[]
r
[]
10,041
317
Li
Li
https://glossary.ametsoc.org/wiki/Category:Terms[PAGE_INFO]glossary_ametsoc_org_5.html
ametsoc_g
Li
http://www.wikidata.org/entity/Q568
lithium
no_definition
chemical element with symbol Li and atomic number 3
[ "chemical element", "lithophile" ]
[]
r
[ "metal", "s-block", "alkali metal" ]
135,068
318
lichen
lichen
https://www.macmillanlearning.com/college/us/product/Earths-Climate/p/1429255250
ec_pf3
lichen
http://www.wikidata.org/entity/Q43142
lichen
Primitive mosslike vegetation that lives on bare rock surfaces, uses sunlight to secrete acids and weather the rock, and slowly grows in a nearly circular shape.
composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi in a symbiotic relationship
[]
[ "holobiont" ]
r
[ "n" ]
3,789
319
lidar
lidar
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2872?rskey=mWiuAn&result=1236
oxford_adow
lidar
http://www.wikidata.org/entity/Q504027
lidar
A pulsed laser system that, in meteorological applications, may be used to detect the presence and motions of *aerosols... ...
remote detection instrumentation
[]
[ "optical instrument" ]
r
[ "n" ]
45,011
320
life cycle
life cycle
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2873?rskey=mWiuAn&result=1237
oxford_adow
life cycle
http://www.wikidata.org/entity/Q67657988
life cycle
The various stages in the development and decay of a *depression, involving formation, *deepening, *occlusion, and *... ...
a series of changes an entity tends to undergo from creation to dissolution
[ "type of property" ]
[]
r
[ "pattern", "sequence" ]
17,931
321
lightning
lightning
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2875?rskey=mWiuAn&result=1239
oxford_adow
lightning
http://www.wikidata.org/entity/Q33741
lightning
The natural electrical discharge that has its origin in the separation of charge that occurs in *cumulonimbus clouds. This discharge may take various forms: cloud-to-ground, cloud-to-cloud (inter-cloud), within a cloud (intra-cloud), or cloud-to-air. The process of a cloud-to-ground stroke (for example) occurs in sever...
weather phenomenon involving electrostatic discharge
[ "type of meteorological phenomenon" ]
[]
r
[ "electromagnetic pulse", "electrical breakdown", "electrometeor", "meteorological phenomenon" ]
39,991
322
LIS
Lis
https://glossary.ametsoc.org/wiki/Category:Terms[PAGE_INFO]glossary_ametsoc_org_5.html
ametsoc_g
LIS
http://www.wikidata.org/entity/Q128405384
Lightning Imaging Sensor
no_definition
space-based lightning detection instrument on the Tropical Rainfall Measuring Mission
[ "space instrument" ]
[]
r
[ "lightning detector" ]
2,913
323
lithosphere
lithosphere
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2881?rskey=c1mh1C&result=1247
oxford_adow
lithosphere
http://www.wikidata.org/entity/Q83296
lithosphere
The outer layer of the solid Earth, consisting of the oceanic and continental crust, and also the uppermost, brittle layer of the mantle. Its thickness varies greatly from just 1–2 km over the hot magma plumes at oceanic ridges to ... ...
rigid, outermost shell of a terrestrial-type planet or natural satellite that is defined by its rigid mechanical properties
[ "geosphere" ]
[ "layer" ]
r
[ "n" ]
1,468
324
Little Ice Age
Little Ice Age
https://ggweather.com/met10/Glossary.pdf
essen_meteo
Little Ice Age
http://www.wikidata.org/entity/Q190530
Little Ice Age
The period from about 1550 to 1850 when average temperatures over Europe were lower, and alpine glaciers increased in size and advanced down mountain canyons.
period of cooling that occurred after the Medieval Warm Period, usually defined as between the 16th to the 19th centuries
[ "ice age" ]
[]
r
[ "n" ]
1,191
325
LLJ
LLJ
https://www.weather.gov/otx/Full_Weather_Glossary
weathergow_fwg
LLJ
http://www.wikidata.org/entity/Q11850562
low level jet
Low Level Jet. Strong Planetary Boundary Layer winds which advect warmer temperatures and moisture into the forecast area.
[]
[]
r
[ "thermal wind" ]
5,069
326
loess
loess
https://www.macmillanlearning.com/college/us/product/Earths-Climate/p/1429255250
ec_pf3
loess
http://www.wikidata.org/entity/Q22723
loess
Silt-sized windblown glacial sediment.
windblown sediment
[ "soil type" ]
[ "sediment" ]
r
[ "n" ]
12,663
327
long-wave radiation
long-wave radiation
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2885?rskey=c1mh1C&result=1252
oxford_adow
long-wave radiation
http://www.wikidata.org/entity/Q82340792
long wave radiation
Electromagnetic radiation emitted by the surface and atmosphere at wavelengths between 3 and 100 μm, i.e. within the range of ... ...
type of radiation
[]
[]
r
[ "radiation" ]
1,458
328
Longitude
Longitude
https://glossary.ametsoc.org/wiki/Category:Terms[PAGE_INFO]glossary_ametsoc_org_5.html
ametsoc_g
Longitude
http://www.wikidata.org/entity/Q36477
longitude
no_definition
geographic coordinate that specifies the east-west position of a point on the Earth's surface
[ "geographic coordinate system" ]
[ "physical quantity" ]
r
[ "n" ]
34,765
329
longwave radiation
longwave radiation
https://www.macmillanlearning.com/college/us/product/Earths-Climate/p/1429255250
ec_pf3
longwave radiation
http://www.wikidata.org/entity/Q82340792
long wave radiation
Energy emitted in the infrared part of the electromagnetic spectrum by materials having a temperature above absolute zero (0K).
type of radiation
[]
[]
r
[ "radiation" ]
12,152
330
Loop Current
Loop Current
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2887?rskey=c1mh1C&result=1256
oxford_adow
Loop Current
http://www.wikidata.org/entity/Q377116
Loop Current
A subsidiary current that circulates within the Gulf of Mexico, with a period of about one year. ...
warm ocean current that flows northward between Cuba and the Yucatán Peninsula into the Gulf of Mexico, loops east and south and exits to the east through the Florida Straits to join the Gulf Stream
[ "ocean current" ]
[]
r
[ "n" ]
275
331
low
LOW
https://www.weather.gov/otx/Full_Weather_Glossary
weathergow_fwg
low
http://www.wikidata.org/entity/Q209190
low pressure area
The center of an area of low pressure, accompanied by cyclonic and inward wind flow in the northern hemisphere. Also known as a cyclone.
region of the atmosphere in which atmospheric pressure is lower than that of surrounding regions
[ "type of meteorological phenomenon", "pressure system" ]
[]
r
[ "meteorological phenomenon" ]
757,646
332
low-level jet
low-level jet
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2891?rskey=c1mh1C&result=1259
oxford_adow
low-level jet
http://www.wikidata.org/entity/Q11850562
low level jet
A narrow band of high winds that occurs well below the level of the *tropopause, where the major *... ...
[]
[]
r
[ "thermal wind" ]
2,008
333
magnetic field
magnetic field
https://www.macmillanlearning.com/college/us/product/Earths-Climate/p/1429255250
ec_pf3
magnetic field
http://www.wikidata.org/entity/Q11408
magnetic field
The lines of force that are generated by motion in Earth’s outer core and cause iron-bearing ma- terials to align in specific directions in relation to the magnetic north pole.
spatial distribution of vectors allowing the calculation of the magnetic force on a test particle
[]
[ "field" ]
r
[ "n" ]
12,951
334
magnetosphere
magnetosphere
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2907?rskey=yS2gmv&result=1278
oxford_adow
magnetosphere
http://www.wikidata.org/entity/Q6915
magnetosphere
The region surrounding a planet within which its magnetic field predominates over external fields. Because of the effect of the ... ...
area of space near an astronomical object influenced by that objects magnetic field
[]
[ "region of space" ]
r
[ "n" ]
560
335
mantle
mantle
https://www.macmillanlearning.com/college/us/product/Earths-Climate/p/1429255250
ec_pf3
mantle
http://www.wikidata.org/entity/Q101949
mantle
The middle (and thickest) layer of the solid Earth, lying beneath the crust and above the core and composed of silicate minerals.
a layer of silicate rock between Earth's crust and its outer core
[ "planetary mantle" ]
[]
r
[ "n" ]
9,252
336
mass balance
mass balance
https://www.macmillanlearning.com/college/us/product/Earths-Climate/p/1429255250
ec_pf3
mass balance
http://www.wikidata.org/entity/Q121278173
mass-balance modelling
The method of tracking the movement of materials within Earth’s climate system by applying the law of conservation of mass.
mathematical modelling approach based on the conservation of mass within the studied system
[]
[ "balance" ]
r
[ "mathematical modelling" ]
13,375
337
mass balance model
mass balance model
https://www.macmillanlearning.com/college/us/product/Earths-Climate/p/1429255250
ec_pf3
mass balance model
http://www.wikidata.org/entity/Q121278173
mass-balance modelling
A model that tracks the movement of materials within Earth’s climate system using conser- vation of mass to balance inputs and outputs among dif- ferent reservoirs.
mathematical modelling approach based on the conservation of mass within the studied system
[]
[]
r
[ "mathematical modelling" ]
472
338
mass spectrometer
mass spectrometer
https://www.macmillanlearning.com/college/us/product/Earths-Climate/p/1429255250
ec_pf3
mass spectrometer
http://www.wikidata.org/entity/Q1327691
mass spectrometer
An instrument that measures differ- ent isotopes of the same element (such as 16 O vs. 18 O and 12 C vs. 13 C) by separating them by mass.
instrument to measure the mass-to-charge ratio of gas phase ions
[ "measuring instrument" ]
[ "spectrometer" ]
r
[ "n" ]
8,300
339
Maunder Minimum
Maunder Minimum
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2920?rskey=3Sj1iG&result=1293
oxford_adow
Maunder Minimum
http://www.wikidata.org/entity/Q827568
Maunder Minimum
A period from about 1645 to 1715 when very few *sunspots or *aurorae were recorded from Western Europe. Recent research on Chinese and Korean records suggests that sunspot numbers were not as low as previously thought. The Maunder Minimum did, however, coincide with an increase in the ... ...
The period starting about 1645 and continuing to about 1715 when sunspots were exceedingly rare
[ "solar minimum" ]
[]
r
[ "n" ]
457
340
MCS
MCS
https://www.weather.gov/otx/Full_Weather_Glossary
weathergow_fwg
MCS
http://www.wikidata.org/entity/Q660968
mesoscale convective system
Mesoscale Convective System. A large cluster of thunderstorms and rain. Can be a squall line, multi
complex of thunderstorms organized on a larger scale
[ "cyclone" ]
[]
r
[]
14,093
341
mean free path
mean free path
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2925?rskey=3Sj1iG&result=1299
oxford_adow
mean free path
http://www.wikidata.org/entity/Q756307
mean free path
The average distance travelled by an atom or molecule between collisions with another similar atmospheric component. The mean free path increases with decreasing pressure, and in the ... ...
average distance travelled by a moving particle between successive impacts
[]
[ "path length", " distance", " physical quantity" ]
r
[ "n" ]
670
342
measurement
measurement
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2926?rskey=3Sj1iG&result=1300
oxford_adow
measurement
http://www.wikidata.org/entity/Q12453
measurement
no_definition
process of assigning quantities to objects or events
[ "academic major" ]
[ "estimation" ]
r
[ "n" ]
140,638
343
megafauna
megafauna
https://www.macmillanlearning.com/college/us/product/Earths-Climate/p/1429255250
ec_pf3
megafauna
http://www.wikidata.org/entity/Q730371
megafauna
Large mammals and marsupials, generally weighing more than 60 kilograms (100 pounds).
large or giant animals
[]
[ "fauna" ]
r
[ "n" ]
1,161
344
melting point
melting point
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2936?rskey=ZmZBtc&result=1313
oxford_adow
melting point
http://www.wikidata.org/entity/Q15318
melting point
The temperature at which a substance changes from the solid to the liquid phase. For pure water, this occurs at 273.15 K (0 °C), slightly below the ... ...
temperature at which a solid turns liquid
[ "thermal property" ]
[ "temperature" ]
r
[ "n" ]
1,730
345
meniscus
meniscus
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2937?rskey=ZmZBtc&result=1314
oxford_adow
meniscus
http://www.wikidata.org/entity/Q898732
meniscus
The (curved) upper surface of a column of liquid. In reading barometers or thermometers that contain a mercury column, for example, allowance must be made for the curvature of the meniscus.... ...
optical shape property of the surface of a liquid in its container
[]
[ "particular anatomical entity", " articular disk" ]
r
[ "phase boundary" ]
828
346
mercury
mercury
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2938?rskey=ZmZBtc&result=1315
oxford_adow
mercury
http://www.wikidata.org/entity/Q925
mercury
A metallic element used extensively in *thermometers and previously in mercury-column *barometers. It has a melting point of −38.87 °C, and cannot therefore be employed in thermometers required for very low temperatures. It is then replaced by alcohol, although the latter provides less accuracy.... ...
chemical element with symbol Hg and atomic number 80
[ "chalcophile element", "metal", "superconducting element", "chemical element" ]
[]
r
[ "post-transition metal" ]
11,704
347
meridional circulation
meridional circulation
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2941?rskey=ZmZBtc&result=1318
oxford_adow
meridional circulation
http://www.wikidata.org/entity/Q463223
thermohaline circulation
Atmospheric circulation that occurs essentially in a north–south plane. Although the *general circulation was originally believed to be of this basic form, it is now accepted that it involves large-scale ... ...
part of the large-scale ocean circulation that is driven by global density gradients created by surface heat and freshwater fluxes
[]
[]
o
[ "fluid flow" ]
3,361
348
mesocyclone
mesocyclone
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2947?rskey=5cMly3&result=1325
oxford_adow
mesocyclone
http://www.wikidata.org/entity/Q2002856
mesocyclone
A deep, vertical column of air, with *cyclonic rotation, that develops within a severe *thunderstorm. Mesocyclones generally have a diameter of 3–10 km, but are known to exceed 16 km on occasions. Present in all ... ...
a region of rotation within a powerful thunderstorm
[ "vertical draft" ]
[ "vortex" ]
r
[ "n" ]
227
349
mesoscale convective system
mesoscale convective system
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2952?rskey=5cMly3&result=1330
oxford_adow
mesoscale convective system
http://www.wikidata.org/entity/Q660968
mesoscale convective system
A large-scale system characterized by deep convective clouds (*cumulus *congestus and *cumulonimbus), various associated *... ...
complex of thunderstorms organized on a larger scale
[ "cyclone" ]
[]
r
[ "n" ]
409
350
Met
Met
https://glossary.ametsoc.org/wiki/Category:Terms[PAGE_INFO]glossary_ametsoc_org_6.html
ametsoc_g
Met
http://www.wikidata.org/entity/Q25261
meteorology
no_definition
branch of science dealing with the study of atmospheric phenomena and the short term variation of weather conditions including wind, precipitation, temperature, humidity, cloud cover, and air pressure
[ "academic discipline", "branch of science" ]
[]
o
[ "earth science", "atmospheric sciences" ]
39,857
351
meteorite
meteorite
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2956?rskey=5cMly3&result=1336
oxford_adow
meteorite
http://www.wikidata.org/entity/Q60186
meteorite
A solid, stony, or metallic body, in most cases of minor-planetary origin, that has survived passage through the Earth's atmosphere and reached the surface. From chemical analysis and spectroscopic studies, certain meteorites may be matched to specific solar-system bodies, including the Moon, Mars, and various minor pl...
piece of solid matter from outer space that has impacted the Earth
[]
[ "rock", " astronomical object" ]
r
[ "n" ]
1,221
352
meteorology
meteorology
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2963?rskey=64WmAE&result=1343
oxford_adow
meteorology
http://www.wikidata.org/entity/Q25261
meteorology
The study and science of all aspects of the atmosphere, and thus including both *weather and *climate. It aims to understand the physical and chemical nature of the atmosphere, its dynamical behaviour, and its complex interactions with the surface. It also includes both short- and long-term weather forecasting, and the...
branch of science dealing with the study of atmospheric phenomena and the short term variation of weather conditions including wind, precipitation, temperature, humidity, cloud cover, and air pressure
[ "branch of science", "academic discipline" ]
[]
r
[ "earth science", "atmospheric sciences" ]
15,972
353
Meteosat
Meteosat
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-1069?rskey=64WmAE&result=1344
oxford_adow
Meteosat
http://www.wikidata.org/entity/Q1429889
Meteosat
A series of spin-stabilized *geostationary meteorological satellites, launched by the European Space Agency (ESA), and operated by ... ...
family of European weather satellites
[ "spacecraft family" ]
[ "geostationary satellite", " weather satellite" ]
r
[ "n" ]
1,925
354
Methane
Methane
https://glossary.ametsoc.org/wiki/Category:Terms[PAGE_INFO]glossary_ametsoc_org_6.html
ametsoc_g
Methane
http://www.wikidata.org/entity/Q37129
methane
no_definition
simplest organic molecule with one carbon atom and four hydrogen
[ "type of chemical entity" ]
[ "biogenic aliphatic hydrocarbon", " group 14 hydride", " alkane" ]
r
[ "n" ]
38,440
355
methane hydrate
methane hydrate
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2966?rskey=64WmAE&result=1349
oxford_adow
methane hydrate
http://www.wikidata.org/entity/Q389036
methane clathrate
A *clathrate, consisting of *methane trapped within a water-ice matrix, found mainly on and below the sea-floor at the lower edge of continental slopes, where low temperatures and high pressures permit it to exist. Some deposits also occur in ... ...
flammable solid similar to ice
[ "type of chemical entity" ]
[]
r
[ "clathrate hydrate", "unconventional gas" ]
1,014
356
MHS
MHS
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2969?rskey=64WmAE&result=1356
oxford_adow
MHS
http://www.wikidata.org/entity/Q17125174
Microwave Humidity Sounder
no_definition
spacecraft meteorological instrument
[ "space instrument", "microwave radiometer" ]
[]
r
[ "meteorological instrument" ]
1,115
357
microclimate
microclimate
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2972?rskey=64WmAE&result=1359
oxford_adow
microclimate
http://www.wikidata.org/entity/Q215108
microclimate
The conditions found in the atmosphere at very small scales, particularly those where small features of the surface significantly affect temperature, humidity, and other factors. Often associated with the study of specific animals, insects, plants, bacteria, etc., including extremophiles, bacteria that exist in extreme...
local set of atmospheric conditions
[]
[ "atmospheric condition" ]
r
[ "n" ]
6,302
358
MISR
MISR
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2991?rskey=GYZN41&result=1383
oxford_adow
MISR
http://www.wikidata.org/entity/Q3867036
Multi-angle Imaging SpectroRadiometer
The multi-angle imaging spectroradiometer carried on the *Terra satellite for obtaining data on the three-dimensional distribution of *aerosols... ...
instruments on the Terra spacecraft
[ "space instrument", "spectroradiometer" ]
[]
r
[]
6,274
359
Mistral
mistral
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-1100?rskey=GYZN41&result=1385
oxford_adow
Mistral
http://www.wikidata.org/entity/Q193742
mistral
A strong, cold, dry, and squally northerly wind that blows down the Rhône valley in south-eastern France and over the Golfe du Lion into the Mediterranean. In extreme cases it may reach as far as Sicily, where it has been recorded at force 10 on the ... ...
strong, cold, northwesterly wind that blows from southern France into the Gulf of Lion in the northern Mediterranean
[]
[ "mountain-gap wind", " katabatic wind" ]
r
[ "n" ]
481
360
mixing ratio
mixing ratio
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2993?rskey=GYZN41&result=1387
oxford_adow
mixing ratio
http://www.wikidata.org/entity/Q171293
mixing ratio
The ratio of the mass of some specific gaseous component to the mass of the air with which it is combined. The term is most frequently used with respect to ... ...
abundance of one component of a mixture relative to others
[]
[ "dimensionless quantity" ]
r
[ "n" ]
18,422
361
MJO
MJO
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2995?rskey=GYZN41&result=1389
oxford_adow
MJO
http://www.wikidata.org/entity/Q1170041
Madden–Julian oscillation
no_definition
largest element of the intraseasonal variability in the tropical atmosphere
[ "meteorological phenomenon" ]
[]
r
[ "Climate oscillation" ]
54,066
362
MM5
MM5
https://www.weather.gov/otx/Full_Weather_Glossary
weathergow_fwg
MM5
http://www.wikidata.org/entity/Q1516983
MM5
the Mesoscale Model Version 5. One of these models is run at the Department of Atmospheric Sciences at the University of Washington which covers the weather over Washington, Oregon and most of Idaho.
regional mesoscale model for creating weather forecasts and climate projections
[ "meteorology" ]
[]
r
[ "n" ]
3,789
363
MOC
MOC
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-2997?rskey=GYZN41&result=1391
oxford_adow
MOC
http://www.wikidata.org/entity/Q4652675
Atlantic meridional overturning circulation
no_definition
zonally-integrated component of surface and deep currents in the Atlantic Ocean
[ "ocean current" ]
[]
r
[]
5,718
364
model
model
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-3002?rskey=GYZN41&result=1396
oxford_adow
model
http://www.wikidata.org/entity/Q1979154
model
Any theoretical representation of a process or system, including conceptual, as well as numerical, models. In general, for practical reasons, a number of simplifying assumptions must be made, which limit the extent to which a model truly represents actual conditions, the time period over which any conclusions are valid...
simplified representation of an entity, either physical or conceptual
[]
[ "artificial object", " information" ]
r
[ "n" ]
1,847,373
365
MODIS
MODIS
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-3004?rskey=GYZN41&result=1398
oxford_adow
MODIS
http://www.wikidata.org/entity/Q676840
Moderate-Resolution Imaging Spectroradiometer
The Moderate-Resolution Imaging Spectroradiometer carried on the *Terra satellite. Designed to be sensitive to a broad range of frequencies from visible to long-wave infrared radiation. Giving coverage of the whole globe every one or two days, this sensor provides information about a large number of factors, including ...
meteorological instrumentation
[ "camera", "space instrument" ]
[]
r
[ "meteorological instrument" ]
48,362
366
Monsoon
Monsoon
https://agupubs.onlinelibrary.wiley.com/doi/book/10.1002/9781119548164
enso_cc
Monsoon
http://www.wikidata.org/entity/Q42967
monsoon
seasonal reversal in surface winds and associ­ated precipitation due to land‐sea heating contrasts. In summer, monsoon rains occur over land, while drying occurs over adjacent oceans.
seasonal changes in atmospheric circulation and precipitation associated with the asymmetric heating of land and sea
[]
[]
r
[ "wind" ]
118,045
367
monsoon climate
monsoon climate
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-3010?rskey=dHYwhy&result=1404
oxford_adow
monsoon climate
http://www.wikidata.org/entity/Q122933063
monsoon climate
The climate found in regions affected by *monsoon winds, particularly those in the tropics (Köppen classification Am). Such regions typically have a dry season, which includes the winter period of greatest cold followed by a transition to extreme heat, which occurs just before the arrival of the monsoon rains. A second...
climate regime
[]
[ "climate" ]
r
[ "n" ]
4,157
368
Moon
Moon
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-3011?rskey=dHYwhy&result=1406
oxford_adow
Moon
http://www.wikidata.org/entity/Q405
Moon
The Earth's only natural satellite, which is astronomically significant because of its large size relative to its parent body. The Moon is responsible for the major component of oceanic ... ...
Earth's only natural satellite
[ "planetary moon", "planetary-mass moon", "regular moon" ]
[]
r
[]
3,641
369
MOPITT
MOPITT
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-3012?rskey=dHYwhy&result=1407
oxford_adow
MOPITT
http://www.wikidata.org/entity/Q1638480
Measurements of Pollution in the Troposphere
An instrument borne on the *Terra satellite, which monitors the distribution of two significant *pollutants, *carbon monoxide... ...
Canadian scientific instrument aboard NASA's Terra satellite
[ "space instrument", "radiometer" ]
[]
r
[]
3,385
370
MOS
MOS
https://www.weather.gov/otx/Full_Weather_Glossary
weathergow_fwg
MOS
http://www.wikidata.org/entity/Q1453537
Model output statistics
Model Output Statistics (usually in reference to NGM model). These are numerical representations of expected weather such as forecasted temperatures and precipitation chances.
weather-forecasting technique
[]
[]
r
[]
3,185
371
NAO
NAO
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-4185?rskey=XfMFXT&result=1428
oxford_adow
NAO
http://www.wikidata.org/entity/Q1137345
North Atlantic oscillation
no_definition
weather phenomenon in the North Atlantic Ocean of fluctuations in the difference of atmospheric pressure at sea level between the Icelandic Low and the Azores High
[ "meteorological phenomenon", "Climate oscillation" ]
[ "bell" ]
r
[]
51,719
372
NAT
NAT
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-3028?rskey=XfMFXT&result=1429
oxford_adow
NAT
http://www.wikidata.org/entity/Q83320
nitric acid
no_definition
strong, oxidising mineral acid
[ "type of chemical entity" ]
[]
o
[ "mineral acid", "monoprotic acid", "nitrogen oxoacid" ]
7,837
373
National Lightning Detection Network
National Lightning Detection Network
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-4187?rskey=XfMFXT&result=1431
oxford_adow
National Lightning Detection Network
http://www.wikidata.org/entity/Q28458090
National Lightning Detection Network
no_definition
[]
[]
r
[ "n" ]
253
374
National Oceanic and Atmospheric Administration
National Oceanic and Atmospheric Administration
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-3029?rskey=XfMFXT&result=1432
oxford_adow
National Oceanic and Atmospheric Administration
http://www.wikidata.org/entity/Q214700
National Oceanic and Atmospheric Administration
The national meteorological and oceanographical organization of the United States. NOAA has overall responsibility for both forecasting and research on all aspects of weather and climate, including the provision of ... ...
agency in the United States Federal Government
[ "United States federal agency" ]
[]
r
[ "n" ]
6,740
375
National Weather Service
National Weather Service
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-4300?rskey=XfMFXT&result=1434
oxford_adow
National Weather Service
http://www.wikidata.org/entity/Q1066823
National Weather Service
An agency of the United States federal government charged with providing forecasts and weather warnings. ...
U.S. forecasting agency of the National Oceanic and Atmospheric Administration
[ "United States federal agency", " meteorological service" ]
[]
r
[ "n" ]
1,348
376
NCEP
NCEP
https://www.weather.gov/otx/Full_Weather_Glossary
weathergow_fwg
NCEP
http://www.wikidata.org/entity/Q1966999
National Centers for Environmental Prediction
National Centers for Environmental Prediction. Central computer and communications facility of the National Weather Service; located in Washington, DC.
core agency of the U.S. National Weather Service
[ "United States federal agency" ]
[]
r
[]
40,270
377
neon
Neon
https://glossary.ametsoc.org/wiki/Category:Terms[PAGE_INFO]glossary_ametsoc_org_6.html
ametsoc_g
neon
http://www.wikidata.org/entity/Q654
neon
no_definition
chemical element with symbol Ne and atomic number 10; rare gas
[ "chemical element", "atmophile element" ]
[]
r
[ "noble gases" ]
853
378
Nevada
Nevada
https://glossary.ametsoc.org/wiki/Category:Terms[PAGE_INFO]glossary_ametsoc_org_6.html
ametsoc_g
Nevada
http://www.wikidata.org/entity/Q432381
Nevada
no_definition
city in Collin County, Texas, United States
[ "city in the United States" ]
[]
r
[ "n" ]
5,690
379
Newton
Newton
https://glossary.ametsoc.org/wiki/Category:Terms[PAGE_INFO]glossary_ametsoc_org_6.html
ametsoc_g
Newton
http://www.wikidata.org/entity/Q12438
newton
no_definition
SI unit of force
[ "unit of force", "SI derived unit", "UCUM derived unit", "SI unit with special name" ]
[]
r
[]
4,098
380
NEXRAD
NEXRAD
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-3037?rskey=vpvCmA&result=1446
oxford_adow
NEXRAD
http://www.wikidata.org/entity/Q3088597
NEXRAD
A network of pulsed *Doppler radar units installed by the United States’ National Weather Service to provide quantitative data on precipitation, wind speeds and direction, and other factors. The system is specifically designed to monitor severe weather and dangerous situations, to track storms, and to give early warnin...
Fourth-generation weather radars used by the National Weather Service
[ "radar network" ]
[]
r
[ "n" ]
1,090
381
NHC
NHC
https://www.weather.gov/otx/Full_Weather_Glossary
weathergow_fwg
NHC
http://www.wikidata.org/entity/Q1329523
National Hurricane Center
National Hurricane Center. The office of the National Weather Service in Miami that is responsible for tracking and forecasting tropical cyclones.
division of the United States' National Weather Service
[ "government organization", "branch", "information system" ]
[]
r
[]
1,120
382
Nimbostratus
Nimbostratus
https://ggweather.com/met10/Glossary.pdf
essen_meteo
Nimbostratus
http://www.wikidata.org/entity/Q202278
nimbostratus
A dark, gray cloud characterized by more or less continuously falling precipitation. It is rarely accompanied by lightning, thunder, or hail.
genus of clouds
[ "cloud type" ]
[ "stratus", " vertical multi-level clouds" ]
r
[ "n" ]
326
383
Nitrate
Nitrate
https://glossary.ametsoc.org/wiki/Category:Terms[PAGE_INFO]glossary_ametsoc_org_6.html
ametsoc_g
Nitrate
http://www.wikidata.org/entity/Q49916468
nitrate
no_definition
salt or ester of nitric acid
[ "structural class of chemical entities" ]
[ "chemical compound" ]
r
[ "n" ]
53,413
384
nitric oxide
Nitric oxide
https://glossary.ametsoc.org/wiki/Category:Terms[PAGE_INFO]glossary_ametsoc_org_6.html
ametsoc_g
nitric oxide
http://www.wikidata.org/entity/Q207843
nitric oxide
no_definition
chemical compound
[ "type of chemical entity" ]
[ "NOx", " radical" ]
r
[ "n" ]
4,127
385
Nitrogen
nitrogen
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-3830?rskey=vpvCmA&result=1454
oxford_adow
Nitrogen
http://www.wikidata.org/entity/Q627
nitrogen
A colourless and odourless gas that is the most abundant atmospheric gas, amounting to 78.08 per cent by volume in the ... ...
chemical element, symbol N and atomic number 7; most abundant element in Earth atmosphere
[ "atmophile element", " chemical element" ]
[ "diatomic nonmetal", " nonmetal" ]
r
[ "n" ]
128,278
386
nitrogen cycle
nitrogen cycle
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-3042?rskey=vpvCmA&result=1455
oxford_adow
nitrogen cycle
http://www.wikidata.org/entity/Q82551
nitrogen cycle
An important chemical cycle, consisting of a complex series of processes that circulate *nitrogen between the atmosphere and animals, plants, and soil. Nitrogen in the atmosphere may be converted into ... ...
biogeochemical cycle by which nitrogen is converted into various chemical forms
[]
[ "biogeochemical cycle" ]
r
[ "n" ]
970
387
nitrogen dioxide
nitrogen dioxide
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-3043?rskey=vpvCmA&result=1456
oxford_adow
nitrogen dioxide
http://www.wikidata.org/entity/Q207895
nitrogen dioxide
A gas (a *nitrogen oxide) that is present in small quantities both near the surface and in the ... ...
chemical compound
[ "type of chemical entity" ]
[ "nitrogen oxide" ]
r
[ "n" ]
1,717
388
nitrogen oxides
nitrogen oxides
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-1151?rskey=vpvCmA&result=1457
oxford_adow
nitrogen oxides
http://www.wikidata.org/entity/Q424418
nitrogen oxide
Chemical species containing *nitrogen and oxygen, particularly the reactive species *nitric oxide (NO) and *nitrogen dioxide (NO... ...
any chemical compound consisting of nitrogen and oxygen only
[ "structural class of chemical entities" ]
[]
r
[ "oxide", "neuropeptide", "nitrogen compound" ]
3,101
389
nitrous oxide
Nitrous oxide
https://glossary.ametsoc.org/wiki/Category:Terms[PAGE_INFO]glossary_ametsoc_org_6.html
ametsoc_g
nitrous oxide
http://www.wikidata.org/entity/Q905750
nitrous oxide
no_definition
chemical compound
[ "type of chemical entity" ]
[ "nitrogen oxide" ]
r
[ "n" ]
2,871
390
NLDN
NLDN
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-4195?rskey=vpvCmA&result=1460
oxford_adow
NLDN
http://www.wikidata.org/entity/Q28458090
National Lightning Detection Network
no_definition
[]
[]
r
[]
2,100
391
NOAA
NOAA
https://www.weather.gov/otx/Full_Weather_Glossary
weathergow_fwg
NOAA
http://www.wikidata.org/entity/Q214700
National Oceanic and Atmospheric Administration
National Oceanic and Atmospheric Administration. A branch of the US Department of Commerce, NOAA is the parent organization of the National Weather Service.
agency in the United States Federal Government
[ "United States federal agency" ]
[ "weather satellite" ]
r
[]
37,152
392
North Atlantic Current
North Atlantic Current
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-3050?rskey=F4Pa5C&result=1470
oxford_adow
North Atlantic Current
http://www.wikidata.org/entity/Q211798
North Atlantic Current
Often popularly referred to as the *Gulf Stream. The portion of the North Atlantic *gyre that lies east of 45° W, flowing towards Europe. A branch passes between Iceland and the British Isles north-eastwards into the Arctic Ocean, where it becomes the ... ...
powerful warm western boundary current in the north Atlantic Ocean that extends the Gulf Stream northeastward
[ "ocean current" ]
[]
r
[ "n" ]
593
393
North Atlantic Deep Water
North Atlantic deep water
https://www.macmillanlearning.com/college/us/product/Earths-Climate/p/1429255250
ec_pf3
North Atlantic Deep Water
http://www.wikidata.org/entity/Q921070
North Atlantic Deep Water
A water mass that forms in the high-latitude North Atlantic Ocean by winter chilling of salty surface water, sinks, and flows southward at depths of 2 to 4 km.
deep water mass formed in the North Atlantic Ocean
[ "water mass" ]
[]
r
[ "n" ]
557
394
North Atlantic Oscillation
North Atlantic Oscillation
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-1161?rskey=F4Pa5C&result=1473
oxford_adow
North Atlantic Oscillation
http://www.wikidata.org/entity/Q1137345
North Atlantic oscillation
A fluctuation of the pressure pattern prevailing over the North Atlantic that has a marked influence on the winter weather of bordering land masses, particularly of Europe. It is similar to the better-known, better-understood (and thus more predictable) ... ...
weather phenomenon in the North Atlantic Ocean of fluctuations in the difference of atmospheric pressure at sea level between the Icelandic Low and the Azores High
[ "meteorological phenomenon", " Climate oscillation" ]
[]
r
[ "n" ]
5,027
395
North Greenland Ice Core Project
North Greenland Ice Core Project
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-4198?rskey=F4Pa5C&result=1479
oxford_adow
North Greenland Ice Core Project
http://www.wikidata.org/entity/Q9063437
North Greenland Ice Core Project
An ice-core drilling site near the centre of Greenland, chosen because of flow distortions that render the bottom of the cores obtained at ... ...
ice drilling site near the center of Groenland
[]
[]
r
[ "n" ]
90
396
Northern Annular Mode
Northern Annular Mode
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-4197?rskey=F4Pa5C&result=1478
oxford_adow
Northern Annular Mode
http://www.wikidata.org/entity/Q674041
Arctic oscillation
no_definition
climate pattern
[ "meteorological phenomenon" ]
[]
r
[]
464
397
Nt
Nt
https://glossary.ametsoc.org/wiki/Category:Terms[PAGE_INFO]glossary_ametsoc_org_6.html
ametsoc_g
Nt
http://www.wikidata.org/entity/Q95976921
nanotesla
no_definition
SI unit of magnetic flux density
[ "unit of magnetic flux density", "SI derived unit" ]
[]
r
[]
33,973
398
nucleation
nucleation
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-3063?rskey=Dr9JYz&result=1490
oxford_adow
nucleation
http://www.wikidata.org/entity/Q909022
nucleation
Any process that initiates a phase change to a more condensed state, such as *condensation (*water vapour... ...
first step in the formation of either a new thermodynamic phase or a new structure via self-assembly or self-organization
[]
[ "beginning", " thermodynamic process" ]
r
[ "n" ]
31,459
399
nucleus
nucleus
https://www.oxfordreference.com/display/10.1093/acref/9780191988356.001.0001/acref-9780191988356-e-3064?rskey=Dr9JYz&result=1491
oxford_adow
nucleus
http://www.wikidata.org/entity/Q677070
nucleus
A tiny solid or liquid particle that is suspended in the atmosphere, generally one that initiates a phase change between the various forms of water. The very smallest and most numerous particles (known as ... ...
concept in physics
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[ "particle" ]
r
[ "n" ]
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