Aircraft with a single pair of wings. Technical term used in aviation contexts.
The Wright brothers' Flyer was not a monoplane.
This monoplane is lightweight and suitable for high-speed flight.
General term for airplane; 単葉機 specifies the wing configuration.
Compound of 単 (single) + 葉 (wing, blade) + 機 (machine, aircraft). The term follows the pattern of other aviation terms like 複葉機 (biplane).