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Air mass
//ɛəɹ mæs// noun
Definitions
Noun
- 1 A particular volume of air, especially one having a roughly uniform temperature, pressure and water vapour content.
"After a 227-day drought ending with December temperatures above 90, a polar air mass collided with a wave of damp tropical air, condensed it in seven days of cloudburst."
- 2 a large body of air with uniform characteristics horizontally wordnet
Etymology
Perhaps a calque of German Luftmasse.
See also for "air mass"
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