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monoplane

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monoplane/ˈmɑːnəˌpleɪn/noun
pluralmonoplanes
monoplane
/ˈmɑːnəˌpleɪn/
noun
pluralmonoplanes
Learner's definition of MONOPLANE  
[count]
: an airplane with one set of wings
◊ Most modern airplanes are monoplanes.
— compare biplane
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