n.
Function: noun
Etymology: perhaps from Middle English *throtel, diminutive of throte throat
Date: circa 1547
1 a : THROAT 1A b : TRACHEA 1
2 a : a valve for regulating the supply of a fluid (as steam) to an engine especially : the valve controlling the volume of vaporized fuel charge delivered to the cylinders of an internal combustion engine b : the lever controlling this valve c : the condition of being throttled
– at full throttle : at full speed <the project is proceeding at full throttle >