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Pronunciation: at′mŏs-fēr


  1. Any gas surrounding a given body; a gaseous medium.
  2. A unit of air pressure equal to 101.325 kPa.

[atmo- + G. sphaira, sphere]

See Also: standard atmosphere, torr

Further information

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.