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Definition of Os scaphoideum
1. Noun. The largest wrist bone on the thumb side.
Exact synonyms: Navicular, Scaphoid Bone
Generic synonyms: Carpal, Carpal Bone, Wrist Bone
Derivative terms: Navicular
Generic synonyms: Carpal, Carpal Bone, Wrist Bone
Derivative terms: Navicular
Medical Definition of Os scaphoideum
1. The largest bone of the proximal row of the carpus on the lateral (radial) side, articulating with the radius, lunate, capitate, trapezium, and trapezoid. Synonym: os scaphoideum, navicular bone of hand, os naviculare manus. (05 Mar 2000)