Throt″tle (?), n. [Dim. of throat. See Throat.] 1. The windpipe, or trachea; the weasand. Sir W. Scott.
2. (Steam Engine) The throttle valve.
Throttle lever(Steam Engine), the hand lever by which a throttle valve is moved, especially in a locomotive. — Throttle valve(Steam Engine), a valve moved by hand or by a governor for regulating the supply of steam to the steam chest. In one form it consists of a disk turning on a transverse axis.