Aileron
WordNet

noun


(1)   An airfoil that controls lateral motion
WiktionaryText

Noun



  1. hinged part on trailing edge of an airplane wing. Used to control lateral turns.

Noun



  1. fin (of some fish)
  2. flipper (of penguins and other animals)
  3. Aileron.
  4. spoiler (of an automobile)
 
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