8. throttle to reduce the pressure of (a fluid) by passing it from a smaller area to a larger one.
Definition of 'throttle'
Princeton's WordNet
1. (noun)accelerator, throttle, throttle valve a valve that regulates the supply of fuel to the engine
2. (verb)accelerator, accelerator pedal, gas pedal, gas, throttle, gun a pedal that controls the throttlevalve "he stepped on the gas"
3. (verb)restrict, restrain, trammel, limit, bound, confine, throttle place limits on (extent or access) "restrict the use of this parking lot"; "limit the time you can spend with your friends"
4. (verb)strangle, strangulate, throttle 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"
5. (verb)choke, throttle reduce the air supply "choke a carburetor"
Definition of 'throttle'
Webster Dictionary
1. (noun)throttle the windpipe, or trachea; the weasand