atmosphere
     n 1: a particular environment or surrounding influence; "there
          was an atmosphere of excitement" [syn: {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 [syn: {standard atmosphere}, {atm}, {standard
        pressure}]
     3: the mass of air surrounding the Earth; "there was great heat
        as the comet entered the atmosphere"; "it was exposed to
        the air" [syn: {air}]
     4: the weather or climate at some place; "the atmosphere was
        thick with fog" [syn: {atmospheric state}]
     5: the envelope of gases surrounding any celestial body
     6: 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" [syn: {air},
         {aura}]
Source: WordNet® 2.0