trapezium

tra·pe·zi·um

noun \trə-ˈpē-zē-əm, tra-\

plural tra·pe·zi·ums or -zia \-zē-ə\

Definition of TRAPEZIUM

1

a : a quadrilateral with no parallel sides

b British : trapezoid 1b

2

: a bone in the wrist at the base of the metacarpal of the thumb

Origin of TRAPEZIUM

New Latin, from Greek trapezion, literally, small table, diminutive of trapeza table, from tra- four (akin to tettares four) + peza foot; akin to Greek pod-, pous foot — more at four, foot

First Known Use: 1570

Rhymes with TRAPEZIUM

magnesium

tra·pe·zi·um

noun \trə-ˈpē-zē-əm, tra-\   (Medical Dictionary)

plural ; tra·pe·zi·umsor ; -zia \-zē-ə\ (audio pronunciation)

Medical Definition of TRAPEZIUM

: a bone in the distal row of the carpus at the base of the thumb—called also greater multangular

Illustration of TRAPEZIUM