air mass

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air mass

  • /ˈɛː mas/ UK
  • /ɛəɹ mæs/ US
  • /ɛːɹ mæs/ US

Where it comes from

From air + mass. Perhaps a calque of German Luftmasse.

noun air masses · airmass

  1. a widespread body of air, the properties of which can be identified as: (a) having been established while that air was situated over a particular region of the Earth's surface (airmass source region) and (b) undergoing specific modifications while in transit away from the source region. An air mass is often defined as a widespread body of air that is approximately homogeneous in its horizontal extent, particularly with reference to temperature and moisture distribution; in addition, the vertical temperature and moisture variations are approximately the same over its horizontal extent.
  2. The amount of air through which light from a celestial object passes, normalized to 1 for an object at zenith. Unfortunately, the extinction is very sensitive to the airmass[…]

Translations

Every language

noun a body of air with uniform characteristics

Españolmasa de aire
日本語気団
中文气团 qìtuán
Portuguêsmassa de ar
Françaismasse d'air
DeutschLuftmasse
Românămasă de aer
Русскиймасса воздуха massa vozduxa

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Cite this
MLA

"air mass." Wiktionary, via Micwyn, micwyn.com/word/air%20mass. Accessed 6 Nov. 2026.

APA

air mass. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/air%20mass

Chicago

"air mass." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/air%20mass.

BibTeX
@misc{air_mass_2026,
  title = {air mass},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/air%20mass},
  urldate = {2026-11-06}
}