ejector

noun

1. 1

   One who, or that which, ejects or dispossesses.

2. 2

   A jet jump for lifting water or withdrawing air from a space. {Ejector condenser} (Steam Engine), a condenser in which the vacuum is maintained by a jet pump.

3. 3

   Ejector seat: a pilot's seat in an airplane that can be forcibly ejected in the case of an emergency; then the pilot descends by parachute.

4. 4

   That part of the mechanism of a breech-loading firearm which ejects the empty shell.

5. 5

   A lever for removing circuit boards from an electronic chassis.