WordWeb Online

1. A person who ousts or supplants someone else
   - ouster
    
2. A mechanism in a firearm that ejects the empty shell case after firing
   - cartridge ejector
    
3. An injector, ejector, steam ejector, steam injector, eductor-jet pump or thermocompressor is a type of pump.
   "Depending on the specific application, an injector can take the form of an eductor-jet pump, a water eductor, a vacuum ejector, a steam-jet ejector, or an aspirator.";
   - thermocompressor, eductor-jet pump, injector, steam ejector, steam injector

Derived forms: ejectors

Type of: individual, mechanism, mortal, person, pump, somebody, someone, soul

Part of: gun

Encyclopedia: Ejector