throttle plate

noun

1. Rare the throat or windpipe
2. a valve that regulates the flow of fluids; esp., a butterfly valve that controls the release of fuel vapor from a carburetor, or the control valve in a steam line
   also throttle plate
3. the hand lever or pedal that controls this valve

transitive verb throttled, throttling

1. to choke; strangle
2. to stop the utterance or action of; censor or suppress
3. 1. to reduce the flow of (fuel vapor, etc.) by means of a throttle
   2. to lessen the speed of (an engine, vehicle, etc.) by this or similar means; slow (down)

intransitive verb