[ mon-uh-pleyn ]
/ ˈmɒn əˌpleɪn /


an airplane with one main sustaining surface or one set of wings.
Nautical. a planing craft the bottom of which is in an unbroken fore-and-aft line.

Origin of monoplane

First recorded in 1905–10; mono- + plane1
Related formsmon·o·plan·ist, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for monoplane

British Dictionary definitions for monoplane


/ (ˈmɒnəʊˌpleɪn) /


an aeroplane with only one pair of wingsCompare biplane
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

Word Origin and History for monoplane



1907, a hybrid coined from mono- + second element of aeroplane. In old planes the wings formed a single surface running across the fuselage.

Online Etymology Dictionary, © 2010 Douglas Harper