convertiplane

or con·vert·a·plane, con·vert·o·plane

[ kuhn-vur-tuh-pleyn ]
/ kənˈvɜr təˌpleɪn /

noun

an airplane capable of both vertical flight like a helicopter and fast, forward speed like a conventional airplane.

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Origin of convertiplane

First recorded in 1945–50; convert1 + -i- + plane1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for convertiplane

convertiplane

convertaplane or convertoplane

/ (kənˈvɜːtəˌpleɪn) /

noun

an aircraft that can land and take off vertically by temporarily directing its propulsive thrust downwards
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