Ejector \E*ject"or\, n. That part of the mechanism of a breech-loading firearm which ejects the empty shell.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Ejector \E*ject"or\, n.

1. One who, or that which, ejects or dispossesses.

2. (Mech.) 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 Revised Unabridged Dictionary (1913)