Atmosphere
Atmosphere ({not transcribed}) , noun
[Greek {not transcribed} vapor (akin to Sanskrit ātman breath, soul, German athem breath) + {not transcribed} sphere: compare French atmosphère. See Sphere.]
1.
(a) (Physics) The whole mass of aeriform fluid surrounding the earth; -- applied also to the gaseous envelope of any celestial orb, or other body; as, the atmosphere of Mars.
(b)
(Physics) Any gaseous envelope or medium.
An atmosphere of cold oxygen.
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 lbs. to the sq. inch.
Hydrogen was liquefied under a pressure of 650 atmospheres.
4.
Any surrounding or pervading influence or condition.
The chillest of social atmospheres.
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.