
1) High-thrust engine 2) Jet engine 3) Turbofan engine 4) Turbojet 5) Turbojet engine
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https://www.crosswordclues.com/clue/turbofan

The turbofan or fanjet is a type of airbreathing jet engine that finds wide use in aircraft propulsion. The word `turbofan` is a portmanteau of `turbine` and `fan`: the turbo portion refers to a gas turbine engine which takes mechanical energy from combustion, and the fan, a ducted fan that uses the mechanical energy from the gas turbine to ...
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http://en.wikipedia.org/wiki/Turbofan

(from the article `jet engine`) In other types of engines, such as the turbofan, thrust is generated by both approaches: A major part of the thrust is derived from the fan, which is ... During the 1960s the turbofan, or fanjet, a modification of the turbojet, came into common use. Some of the incoming air is bypassed around the ... U...
Found on
http://www.britannica.com/eb/a-z/t/93

turbofan, fan jet 1. A jet engine in which fans driven by a turbine force air into the exhaust gases, thereby increasing the propelling thrust of the engine. 2. A jet aircraft that has turbofan engines. A type of gas turbine in which the fan driving air into a turbojet also forces additional air around the outside of the turbine, combining it wit...
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http://www.wordinfo.info/words/index/info/view_unit/1109/7

Jet engine of the type used by most airliners, so called because of its huge front fan. The fan sends air not only into the engine for combustion but also around the engine for additional thrust. This results in a faster and more fuel-efficient propulsive jet (see jet propulsion)
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https://www.encyclo.co.uk/local/21221

a 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
Found on
https://www.infoplease.com/dictionary/turbofan
No exact match found.