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Definition of Knuckle joint
1. Noun. A joint of a finger when the fist is closed.
Exact synonyms: Knuckle, Metacarpophalangeal Joint
Generic synonyms: Articulatio Synovialis, Diarthrosis, Synovial Joint
Group relationships: Finger
Derivative terms: Knuckle
Generic synonyms: Articulatio Synovialis, Diarthrosis, Synovial Joint
Group relationships: Finger
Derivative terms: Knuckle
2. Noun. A joint allowing movement in one plane only.