Ejector
Ejector , noun
1.
One who, or that which, ejects or dispossesses.
2.
(Mechanics) A jet jump for lifting water or withdrawing air from a space.
3.
That part of the mechanism of a breech-loading firearm which ejects the empty shell.
Collocations (1)
Ejector condenser (Steam Engine) , a condenser in which the vacuum is maintained by a jet pump.