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push-down

[poo sh-doun]
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noun Aeronautics.
  1. a sudden, downward shift by an aircraft in the direction of the flight path.
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Origin of push-down

First recorded in 1935–40; noun use of verb phrase push down
Also called pushover.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018