#air_current__aircurrent__draft__draught  a current of air (usually coming into a room or vehicle)
  supertype:  wind  air moving (sometimes with considerable force) from an area of high pressure to an area of low pressure; "trees bent under the fierce winds"; "when there is no wind, row"
  subtype:  thermal  rising current of warm air
  subtype:  updraft  an strong upward air current
  subtype:  downdraft  a strong downward air current

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