Atmosphere

n.	1.	(Physics) The whole mass of aëriform fluid surrounding the earth; - applied also to the gaseous envelope of any celestial orb, or other body; as, the atmosphere of Mars. An atmosphere of cold oxygen. - Miller.
	2.	A supposed medium around various bodies; as, electrical atmosphere, a medium formerly supposed to surround electrical bodies.
	3.	The pressure or weight of the air at the sea level, on a unit of surface, or about 14.7 lbs. 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.

Noun	1.	atmosphere - a particular environment or surrounding influence; "there was an atmosphere of excitement" Synonyms: ambiance, ambience
	2.	atmosphere - a unit of pressure: the pressure that will support a column of mercury 760 mm high at sea level and 0 degrees centigrade Synonyms: atm, standard atmosphere, standard pressure
	3.	atmosphere - the mass of air surrounding the Earth; "there was great heat as the comet entered the atmosphere"; "it was exposed to the air" Synonyms: air
	4.	atmosphere - the weather or climate at some place; "the atmosphere was thick with fog" Synonyms: atmospheric state
	5.	atmosphere - the envelope of gases surrounding any celestial body
	6.	atmosphere - a distinctive but intangible quality surrounding a person or thing; "an air of mystery"; "the house had a neglected air"; "an atmosphere of defeat pervaded the candidate's headquarters"; "the place had an aura of romance" Synonyms: aura, air

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