2. (Science: machinery) A stud or pin which forms a journal; also called wrist pin. Bridle wrist, the wrist of the left hand, in which a horseman holds the bridle. Wrist clonus. [NL. Clonus, fr. Gr. See clonic.
Origin: OE. Wriste, wrist, AS. Wrist; akin to OFries. Wriust, LG. Wrist, G. Rist wrist, instep, Icel. Rist instep, Dan. & Sw. Vrist, and perhaps to E. Writhe.