rotary wing
noun Aeronautics.
an airfoil that rotates about an approximately vertical axis, as that supporting a helicopter or autogiro in flight.
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Origin of rotary wing
First recorded in 1930–35
Words nearby rotary wing
rotary pump, rotary shutter, rotary-till, rotary tiller, rotary valve, rotary wing, rotate, rotating, rotation, rotational molding, rotational nystagmus
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020