propfan

[ prop-fan ]
/ ˈprɒpˌfæn /

noun

Aeronautics. a turbojet having a turbine-driven propeller that operates completely outside the jet engine.

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Origin of propfan

First recorded in 1965–70; prop3 + fan1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020