throttle

nouns

a valve that regulates the supply of fuel to the engine
accelerator, throttle, throttle valve
a pedal that controls the throttle valve
"he stepped on the gas"
accelerator, accelerator pedal, gas, gas pedal, gun, throttle

verbs

place limits on (extent or access)
"restrict the use of this parking lot"; "limit the time you can spend with your friends"
bound, confine, limit, restrain, restrict, throttle, trammel
kill by squeezing the throat of so as to cut off the air
"he tried to strangle his opponent"; "A man in Boston has been strangling several dozen prostitutes"
strangle, strangulate, throttle
is derived from
throttler
is derived from
throttling
reduce the air supply
"choke a carburetor"
choke, throttle