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Verb: flap (flapped,flapping)  flap
  1. (of wings) move up and down with a thrashing motion
    "The bird flapped its wings";
    - beat
  2. Move in a wavy pattern or with a rising and falling motion
    "the waves flapped towards the beach";
    - roll, undulate, wave
  3. To flutter noisily when moved by the wind
    "flags flapped in the strong wind"
  4. Move with a flapping motion
    "The bird's wings were flapping";
    - beat
  5. Make a fuss; be agitated
    - dither, pother
  6. Pronounce with a flap, of alveolar sounds
Noun: flap  flap
  1. Any broad thin and limber covering attached at one edge; hangs loose or projects freely
    "he wrote on the flap of the envelope"
  2. [informal] An excited state of agitation
    "there was a terrible flap about the theft";
    - dither, pother, fuss, tizzy [informal], tizz [informal]
  3. The motion made by flapping up and down
    - flapping, flutter, fluttering
  4. A movable piece of tissue partly connected to the body
  5. A movable airfoil that is part of an aircraft wing; used to increase lift or drag
    - flaps

Derived forms: flapped, flaps, flapping

Type of: aerofoil [Brit], agitation, airfoil [N. Amer], animal tissue, articulate, beat, control surface, covering, displace, enounce, enunciate, fret, fuss, move, niggle, pound, pronounce, say, sound out, surface, thump, undulation, wave

Part of: wing

Encyclopedia: Flap