throttle

throttle (http://definr.com/throttle)

     n 1: a valve that regulates the supply of fuel to the engine
          [syn: accelerator, throttle valve]
     2: a pedal that controls the throttle valve; "he stepped on the
        gas" [syn: accelerator, accelerator pedal, gas pedal,
         gas, gun]
     v 1: place limits on; "restrict the use of this parking lot"
          [syn: restrict, restrain, trammel, limit, bound,
           confine]
     2: squeeze the throat of; "he tried to strangle his opponent"
        [syn: strangle, strangulate]
     3: reduce the air supply; of carburetors [syn: choke]