Thickest in the middle, and tapering to both ends;
fusiform; -- applied chiefly to roots.
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 ...