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WordReference Random House Learner's Dictionary of American English © 2024tur•bo•fan /ˈtɜrboʊˌfæn/USA pronunciation n. - Aeronauticsfanjet (def. 1).
See -turb-. WordReference Random House Unabridged Dictionary of American English © 2024tur•bo•fan (tûr′bō fan′),USA pronunciation n. - Aeronauticsa jet engine having a large impeller that takes in air, part of which is used in combustion of fuel, the remainder being mixed with the products of combustion to form a low-velocity exhaust jet. Also called tur′bofan en′gine.
Collins Concise English Dictionary © HarperCollins Publishers:: turbofan /ˈtɜːbəʊˌfæn/ n
Also called: high bypass ratio engine a type of by-pass engine in which a large fan driven by a turbine and housed in a short duct forces air rearwards around the exhaust gases in order to increase the propulsive thrust- an aircraft driven by one or more turbofans
- the ducted fan in such an engine
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