throttle
noun
1. a valve that regulates the supply of fuel to the engine
Similar word(s): accelerator
Definition categories: man–made, valve
2. a pedal that controls the throttle valve
Similar word(s): accelerator, gas, gun
verb
1. place limits on (extent or amount or access)
Similar word(s): bound, confine, limit, restrict, trammel
Definition categories: change
2. kill by squeezing the throat of so as to cut off the air
Similar word(s): strangle, strangulate
Definition categories: contact, kill
3. reduce the air supply
Similar word(s): choke