downdraft

[doun-draft, -drahft]

Origin of downdraft

First recorded in 1780–90; down1 + draft
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

downdraft in Science

downdraft

[doundrăft′]
  1. A downward moving current of air in a cumulonimbus cloud. Compare updraft.
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