ejector : Idioms & Phrases
cartridge ejector
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noun a mechanism in a firearm that ejects the empty shell case after firing
ejector.
WordNet
Ejector condenser
(Steam Engine) , a condenser in which the vacuum is maintained by a jet pump.
Webster 1913
ejector seat
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noun a pilot's seat in an airplane that can be forcibly ejected in the case of an emergency; then the pilot descends by parachute
ejection seat; capsule.