[at.mo.sphere] n [NL atmosphaera, fr. Gk atmos vapor + L sphaera sphere] (1677) 1 a: the gaseous envelope of a celestial body (as a planet) b: the whole mass of air surrounding the earth
2: the air of a locality
3: a surrounding influence or environment "an ~ of hostility"
4: a unit of pressure equal to the pressure of the air at sea level or approximately 14.7 pounds per square inch (101,325 pascals)
5. a: the overall aesthetic effect of a work of art b: a dominant aesthetic or emotional effect or appeal -- at.mo.sphered adj