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1. A particular environment or surrounding influence
   "there was an atmosphere of excitement";
   - 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
   - standard atmosphere, atm, standard pressure
    
3. The mass of air surrounding the Earth
   "there was great heat as the comet entered the atmosphere";
   - air
    
4. The weather or climate at some place
   "the atmosphere was thick with fog";
   - 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";
   - air, aura

Derived forms: atmospheres

Type of: atmospheric condition, condition, conditions, gas, part, pressure unit, quality, region, status, weather, weather condition

Part of: Earth, globe, world

Encyclopedia: Atmosphere