Definitions of flaps
  1. noun
    a movable airfoil that is part of an aircraft wing; used to increase lift or drag
    synonyms: flap
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    landing flap
    a flap on the underside of the wing that is lowered to slow the plane for landing
    type of:
    aerofoil, airfoil, control surface, surface
    a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight
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