- (n.) 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.
- (n.) 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.
- (n.) 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.
- (n.) Any gaseous envelope or medium.
- (n.) A supposed medium around various bodies; as, electrical atmosphere, a medium formerly supposed to surround electrical bodies.
- (n.) Any surrounding or pervading influence or condition.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). atmosphere. Retrieved September 23, 2026, from http://smartdefine.org/atmosphere/definitions/1976823 |
| Chicago | Webster's. 2011. "atmosphere" http://smartdefine.org/atmosphere/definitions/1976823 (accessed September 23, 2026). |
| Harvard | Webster's 2011, atmosphere, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/atmosphere/definitions/1976823>. |
| MLA | Webster's. "atmosphere" 27 May 2011. Web. 23 September 2026. <http://smartdefine.org/atmosphere/definitions/1976823> |