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1. A valve that regulates the supply of fuel to the engine
   - accelerator, throttle valve
    
2. A pedal that controls the throttle valve
   "he stepped on the throttle";
   - accelerator, accelerator pedal, gas pedal [N. Amer], gas [N. Amer], gun

1. Place limits on (extent or access)
   - restrict, restrain, trammel, limit, bound, confine
    
2. Kill by squeezing the throat of so as to cut off the air
   "he tried to throttle his opponent";
   - strangle, strangulate
    
3. Reduce the air supply
   "throttle a carburettor";
   - choke

Derived forms: throttling, throttled, throttles

Type of: check, contain, control, curb, enrich, foot lever, foot pedal, hold, hold in, kill, moderate, pedal, treadle, valve

Part of: aeroplane [Brit], airplane [N. Amer], auto, automobile, car, fuel system, machine, motorcar, plane

Encyclopedia: Throttle