a joint forming a knuckle.
Machinery. a joint between two parts allowing movement in one plane only.
any of the joints of the fingers
(mechanical engineering) a hinged joint between two rods, often a ball and socket joint
- Knuckle pads
knuckle pads n. An atavistic congenital condition in which thick pads of skin appear over the proximal phalangeal joints.
noun, Baseball. 1. a slow pitch that moves erratically toward home plate, usually delivered by holding the ball between the thumb and the knuckles of the first joints of the first two or three fingers. modifier : a knuckleball artist noun A pitch thrown from the knuckles that moves slowly and erratically; butterfly ball: Leonard’s […]
noun, Slang. 1. a punch in the mouth with a clenched fist. noun phrase A hard blow to the mouthor face: I feed him a knuckle sandwich/ You keep that up and you’re going to get a knuckle sandwich (1973+)
[nuhk-uh l] /ˈnʌk əl/ noun 1. a joint of a finger, especially one of the articulations of a metacarpal with a phalanx. 2. the rounded prominence of such a joint when the finger is bent. 3. a joint of meat, consisting of the parts about the carpal or tarsal joint of a quadruped. 4. an […]