an airplane or glider with only one main supporting surface, or pair of wings
monoplane in American English
(ˈmɑnəˌplein)
noun
1.
an airplane with one main sustaining surface or one set of wings
2. Nautical
a planing craft the bottom of which is in an unbroken fore-and-aft line
Derived forms
monoplanist
noun
Word origin
[1905–10; mono- + plane1]This word is first recorded in the period 1905–10. Other words that entered Englishat around the same time include: aspect ratio, one-shot, overcall, scrounge, white list