EJECTOR
ouster, ejector
(noun) a person who ousts or supplants someone else
Source: WordNet® 3.1
Etymology
Noun
ejector (plural ejectors)
One who, or that which, ejects or dispossesses.
(mechanics) 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.
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.
That part of the mechanism of a breech-loading firearm which ejects the empty shell.
A lever for removing circuit boards from an electronic chassis.
Source: Wiktionary
E*ject"or, n.
1. One who, or that which, ejects or dispossesses.
2. (Mech.)
Definition: 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.
Source: Webster’s Unabridged Dictionary 1913 Edition