[n] 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"
[n] the mass of air surrounding the Earth; "there was great heat as the comet entered the atmosphere"
[n] the envelope of gases surrounding any celestial body
[n] a unit of pressure: the pressure that will support a column of mercury 760 mm high at sea level and 0 degrees centigrade
[n] the weather or climate at some place; "the atmosphere was thick with fog"
[n] a particular environment or surrounding influence; "there was an atmosphere of excitement"