trapezium

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Related to Trapesium: trapezium, trapezium bone

trapezium

 [trah-pe´ze-um]
an irregular, four-sided figure.

tra·pe·zi·um

, pl.

tra·pe·zi·a

,

tra·pe·zi·ums

(tra-pē'zē-ŭm, -ă),
1. A four-sided geometric figure with no two sides in parallel.
2. Synonym(s): trapezium (bone)
[G. trapezion, a table or counter, a trapezium, dim. of trapeza, a table, fr. tra- (= tetra-), four, + pous (pod-), foot]

trapezium

(trə-pē′zē-əm)
n. pl. trape·ziums or trape·zia (-zē-ə)
1. Mathematics
a. A quadrilateral having no parallel sides.
b. Chiefly British A trapezoid.
2. Anatomy A bone in the wrist at the base of the thumb.

tra·pe·zi·um

, pl. trapezia, trapeziums (tră-pē'zē-ŭm, -ă, -ŭmz)
1. A four-sided geometric figure having no two sides parallel.
2. The lateral (radial) bone in the distal row of the carpus; it articulates with the first and second metacarpals, scaphoid, and trapezoid bones.
Synonym(s): os trapezium [TA] , greater multangular bone, os multangulum majus, trapezium bone.
[G. trapezion, a table or counter, a trapezium, dim. of trapeza, a table, fr. tra- (= tetra-), four, + pous (pod-), foot]