aileron

noun ai·le·ron \ ˈā-lə-ˌrän \

Definition of aileron

: a movable airfoil at the trailing edge of an airplane wing that is used for imparting a rolling motion especially in banking for turns — see airplane illustration

Recent Examples of aileron from the Web

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Origin and Etymology of aileron

French, from diminutive of aile wing — more at aisle


AILERON Defined for English Language Learners

aileron

noun

Definition of aileron for English Language Learners

  • : a part of an airplane wing that can be moved up or down to cause the airplane to turn



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