trapezoid bone

trapezoid bone

Etymology: Gk, trapezion + eidos + AS, ban

the carpal bone, located in the distal row of carpal bones between the trapezium and the capitate. It resembles a wedge, with the broad end at the dorsal surface, the narrow end at the palmar surface. Also called lesser multangular bone, os trapezoideum.

trap·e·zoid bone

(trap'ĕ-zoyd bōn)

A bone in the distal row of the carpus; it articulates with the second metacarpal, trapezium, capitate, and scaphoid.
Synonym(s): trapezoid (3) .

trapezoid bone

The second bone in the distal row of carpal bones. It lies between the trapezium and capitate bones.

See also: bone