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airmass

noun

Etymology

From air + mass.

  1. derived from *maǵ-✻ — “to oil, knead”
  2. derived from μᾶζα — “barley-cake, lump (of dough)”
  3. derived from massa
  4. derived from masse
  5. compounded as airmass — “air + mass”

Definitions

  1. a widespread body of air, the properties of which can be identified as

    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…

    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[…]

The neighborhood

Vish — recursive loop

No curated loop yet for airmass. Loops are being traced one word at a time while the ingestion pipeline matures.

sense glosses and etymology drawn from English Wiktionary · source · CC-BY-SA