Real Dictionary

throttle
countable noun: The throttle of a motor vehicle or aircraft is the device, lever, or pedal that controls the quantity of fuel entering the engine and is used to control the vehicle's speed.
verb: If you say that something or someone is throttling a process, institution, or group, you mean that they are restricting it severely or destroying it.
verb: To throttle someone means to kill or injure them by squeezing their throat or tightening something around it and preventing them from breathing.

throttle in American English
the throat or windpipe
to choke or suffocate
to choke; strangle
noun: a lever, pedal, handle, etc., for controlling or manipulating a throttle valve

throttle in Automotive Engineering
noun: The throttle of a vehicle is the device, lever, or pedal that controls the quantity of fuel entering the engine and is used to control the vehicle's speed.

throttle in British English
noun: any device that controls the quantity of fuel or fuel and air mixture entering an engine

throttle in Mechanical Engineering
noun: A throttle is a device that controls the quantity of fuel or fuel and air mixture entering an engine.