throttle UK /ˈθɹɒtəl/US /ˈθɹɑtəl/verb 6noun 3forms 3phrases 1 verb6 •To strangle or choke someone. •To control or adjust the speed of (an engine). •To cut back on the speed of (an engine, person, organization, network connection, etc.). •To have the throat obstructed so as to be in danger of suffocation; to choke; to suffocate. •To breathe hard, as when nearly suffocated. •To utter with breaks and interruption, in the manner of a person half suffocated.I have seen them shiver and look pale, Make periods in the midst of sentences, Throttle their practised accent in their fears. — 1595 noun3 •A valve that regulates the supply of fuel-air mixture to an internal combustion engine and thus controls its speed; a similar valve that controls the air supply to an engine. •The lever or pedal that controls this valve.To my unpractised eye, the undulations in the track were quite imperceptible, but the engineer's hand on the throttle was never still. — 1961 •(no longer used) The windpipe or trachea.Then up got Peg, and round the house gan scuttle, / In search of goods her customer to nail, / Until the Sultaun strain'd his princely throttle, / And hollow'd,—"Ma'am, that is not what I ail.["] — 1817 formsthrottled · throttling · throttles Phrases with throttle throttle downTo reduce power to (an engine), reduce speed