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WordReference Random House Unabridged Dictionary of American English © 2024Frise′ ai′leron (frēz),USA pronunciation [Aeron.]- Aeronauticsan aircraft wing control surface designed with its leading edge extending forward of its axis of rotation so that when the aileron's trailing edge is raised the leading edge extends below the bottom surface of the wing.
- named after Leslie German. Frise (born 1897), British engineer 1930–35
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