elevon

[ el-uh-von ]
/ ˈɛl əˌvɒn /

noun Aeronautics.

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

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Origin of elevon

First recorded in 1940–45; elev(ator) + (ailer)on
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for elevon

elevon
/ (ˈɛlɪˌvɒn) /

noun

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