from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An airplane with only one pair of wings.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An airplane that has a single pair of wings
from The Century Dictionary and Cyclopedia
- n. A flying-machine or a gliding-machine which depends for sustention upon a single aeroplane (surface) or upon a single pair of aeroplanes laterally disposed. In a flying-machine of this type, M. Louis Bleriot crossed the English Channel, July 25, 1909. See aëroplane, n., 2.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an airplane with a single wing
Formed as mono- + plane, by analogy with biplane; compare the French monoplan, as well as the earlier English aeroplane, multiplane, and triplane. (Wiktionary)