HyperDic: calm_air

English > 1 sense of the expression calm air:
NOUNphenomenoncalm air, calmwind moving at less than 1 knot
English > calm air: 1 sense > noun 1, phenomenon
Meaningwind moving at less than 1 knot; 0 on the Beaufort scale.
Synonymcalm
Part ofBeaufort scale, wind scaleAn international scale of wind force from 0 (calm air) to 12 (hurricane)
Broaderwind, air current, current of airAir moving (sometimes with considerable force) from an area of high pressure to an area of low pressure
Spanishcalma
Catalancalma

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