🇬🇧 en fr 🇫🇷

air mass noun

  /ɛəɹ mæs/ , /ɛːɹ mæs/ , /ˈɛː mas/
  • (meteorology) A particular volume of air, especially one having a roughly uniform temperature, pressure and water vapour content. [from 19th c.]
 masse d'air
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