2 definitions found
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Atmosphere \At"mos*phere\, n. [Gr. ? vapor (akin to Skr.
[=a]tman breath, soul, G. athem breath) + ? sphere: cf F.
atmosph[`e]re. See {Sphere}.]
1. (Physics)
a The whole mass of a["e]riform fluid surrounding the
earth; -- applied also to the gaseous envelope of any
celestial orb, or other body; as the atmosphere of
Mars.
b Any gaseous envelope or medium.
An atmosphere of cold oxygen. --Miller.
2. A supposed medium around various bodies; as electrical
atmosphere, a medium formerly supposed to surround
electrical bodies. --Franklin.
3. The pressure or weight of the air at the sea level, on a
unit of surface, or about 14.7 Ibs. to the sq inch.
Hydrogen was liquefied under a pressure of 650
atmospheres. --Lubbock.
4. Any surrounding or pervading influence or condition.
The chillest of social atmospheres. --Hawthorne.
5. The portion of air in any locality, or affected by a
special physical or sanitary condition; as the atmosphere
of the room a moist or noxious atmosphere.
From WordNet r 1.6 [wn]:
atmosphere
n 1: a particular environment or surrounding influence; "there
was an atmosphere of excitement" [syn: {ambiance}, {ambience}]
2: a unit of pressure: the pressure that will support a column
of mercury 760 mm high at sea level and 0 degrees
centigrade [syn: {atm}]
3: the mass of air surrounding the Earth; "there was great heat
as the comet entered the atmosphere"
4: the weather or climate at some place "the atmosphere was
thick with fog" [syn: {atmospheric state}]
5: the envelope of gases surrounding any celestial body
6: a distinctive but intangible quality surrounding a person or
thing: "an atmosphere of defeat pervaded the candidate's
headquarters"; "the place had an aura of romance" [syn: {air},
{aura}]
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