1. (n.) One who, or that which, generates, begets, causes, or produces.

2. (n.) An apparatus in which vapor or gas is formed from a liquid or solid by means of heat or chemical process, as a steam boiler, gas retort, or vessel for generating carbonic acid gas, etc.

3. (n.) The principal sound or sounds by which others are produced; the fundamental note or root of the common chord; -- called also generating tone.

AC motor Corliss engine Otto engine PCV valve Wankel engine accelerator actuator aeromotor agent air engine alternator ammeter amplifier ancestors anode apprentice architect armature artificer artist attenuator audio-frequency tube author autoconverter autostarter autotransformer ballast regulator ballast tube battery charger beam engine beam-switching tube bearings begetter beginner blowing engine bonnet boot brake brush bucket seat builder bumper cam engine camshaft cap capacitator capacitor capacitor motor carburetor catalyst cathode causer charger chassis choke choking coil clock clutch coil commutator commutator motor compensated motor compensator compound motor conceiver condenser condensing engine connecting rod constructor control relay control resistor controller converter convertible top convertor coupling cowl craftsman crank crankcase crankshaft creator current regulator cutout cylinder cylinder head damper dash dashboard designer detector deviser diagonal engine differential direct-acting engine discoverer discriminator distributor donkey engine doubler dynamo dynamotor effector electric motor electrode electrophorus electroscope engenderer engineer executor executrix exhaust exhaust pipe fan father feedback amplifier fender fire engine flywheel focus tube founder fuse galvanic pile galvanoscope gas turbine engine gear gearbox gearshift grid ground grower headlight headrest hood horn hot-air engine hydraulic engine hydro-jet iconoscope ignition impulse duct engine inaugurator inductor industrialist initiator inspirer instigator institutor insulator intake interrupter introducer inventor inverted engine inverter ion engine ion rocket jet journeyman jumper lightning rod limiter local-oscillator tube magnet magnetic relay magneto magnetoscope maker manifold manufacturer master master craftsman meter relay mixer tube modulator mother motor-generator mover muffler multiplier multipurpose tube multivibrator organizer originator oscillator oscilloscope outboard motor outlet output tube pancake engine parent parking light past master patriarch phase inverter picture tube pile piston piston engine piston-valve engine planner plasma engine plug pocket points portable engine power brakes power steering power tube precursor pressure transducer prime mover primum mobile producer pulse generator pulse-jet engine pumping engine push button radial engine radiator radio-frequency tube raiser ramjet ramjet engine reactor realizer rear-view mirror receiving tube receptacle reciprocating engine rectifier rectifier tube refrigerating engine regenerator regulator relay reluctance amplifier repeater resistance box resistor resojet engine rheostat rocket engine rocket motor rotary engine rotary-piston engine rotor motor seat belt self-starter selsyn servo amplifier servomotor shaper shock absorber