aileron
aileron definition
aileron (ā′lə rän′)
noun
a pilot-controlled airfoil attached to, in, or near the trailing edge of an airplane wing, for controlling the rolling movements of the airplane
Etymology: Fr < OFr aleron, wingtip < aile, wing < L ala, wing, armpit < *agsla < IE *aks-: see axis
Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.
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