atmosphere

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at·mos·phere / ˈatməsˌfi(ə)r/ • n. [usu. in sing.] 1. the envelope of gases surrounding the earth or another planet. ∎  the air in any particular place: the dusty atmosphere of his apartment. ∎  (abbr.: atm) Physics a unit of pressure equal to mean atmospheric pressure at sea level, 101,325 pascals.2. the pervading tone or mood of a place, situation, or work of art: the hotel is famous for its friendly, welcoming atmosphere. ∎  a pleasurable and interesting or exciting mood: a superb restaurant, full of atmosphere.ORIGIN: mid 17th cent.: from modern Latin atmosphaera, from Greek atmos ‘vapor’ + sphaira ‘ball, globe.’

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