1. (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.

2. (n.) Any gaseous envelope or medium.

3. (n.) A supposed medium around various bodies; as, electrical atmosphere, a medium formerly supposed to surround electrical bodies.

4. (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.

5. (n.) Any surrounding or pervading influence or condition.

6. (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.

action aerial aerodynamics aerosphere air ambience ambient anagnorisis angle architectonics architecture argument arrangement atmospheric aura background balance biosphere brushwork catastrophe character characteristic characterization climate color complication composition continuity contrivance denouement design development device draftsmanship ecosphere episode fable falling action feel feeling flavor fluid gas gaseous envelope gimmick grouping halogen gas impression incident individuality inert gas lift line local color medium milieu mise-en-scene mood motif movement mythos noosphere note overtone painterliness peculiarity peripeteia perspective plan plot pneumatic pneumatics property quality recognition rising action scheme secondary plot semblance sense shading shadow slant spirit story structure subject subplot suggestion surroundings switch technique thematic development theme tone topic treatment twist undertone values welkin