noun Aeronautics.

a control surface functioning both as an elevator and as an aileron.

Origin of elevon

First recorded in 1940–45; elev(ator) + (ailer)on
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British Dictionary definitions for elevon



an aircraft control surface that combines the functions of an elevator and aileron, usually fitted to tailless or delta-wing aircraft

Word Origin for elevon

C20: from elev (ator) + (ailer) on
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012