aileron
noun/ˈeɪlərɒn/
/ˈeɪlərɑːn/
(specialist)- a part of the wing of a plane that moves up and down to control the plane’s balanceTopics Transport by airc2Word Originearly 20th cent.: from French, literally ‘small wing’, diminutive of aile, from Latin ala ‘wing’.
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aileron