Definition of atmosphere in English:


Line breaks: at¦mos|phere
Pronunciation: /ˈatməsfɪə


[usually in singular]
  • 1The envelope of gases surrounding the earth or another planet: part of the sun’s energy is absorbed by the earth’s atmosphere
    More example sentences
    • So, trapped in the musty atmosphere of planet earth, they appear clumsy and fragile.
    • What happens to the charged particles which came from the sun after they hit the atmosphere of the earth?
    • During this time it will be collecting images of the surface and collating information about the atmosphere surrounding the Red Planet.
    air, aerosphere, airspace, sky
    literary the heavens, the firmament, the vault of heaven, the blue, the wide blue yonder, the azure, the ether, the welkin, the empyrean, the upper regions, the sphere
  • 1.1The air in any particular place: these beetles breed best in a damp atmosphere
    More example sentences
    • The air was stale and the dusty atmosphere was enough to make all of them hesitant to breathe.
    • Dusty atmosphere and physical exertions are extremely harmful for heart patients.
    • To replace some of the moisture that central heating takes out of the atmosphere, hang a damp towel over a radiator or place a bowl of water next to one.
  • 1.2 (abbreviation: atm) Physics A unit of pressure equal to mean atmospheric pressure at sea level, 101,325 pascals.
    More example sentences
    • Furthermore, our measurements of 10 atm of adhesion pressure strongly contradict the suction hypothesis.
    • In the dilution stage, however, the internal pressure stays the same while the external pressure drops to zero, resulting in a pressure difference of 104 atm.
    • A Langevin piston was used to maintain the pressure at 1 atm.


mid 17th century: from modern Latin atmosphaera, from Greek atmos 'vapour' + sphaira 'ball, globe'.

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