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n. pl. tra·pe·zi·ums or tra·pe·zi·a (-zē-ə)
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.
[Originally, a quadrilateral with two parallel sides (later confused with trapezoid, originally, a quadrilateral having no parallel sides), from Modern Latin trapezium, a quadrilateral with two parallel sides, from Late Greek trapezion, from Greek, diminutive of trapeza, table : tra-, four; see kwetwer- in Indo-European roots + peza, foot; see ped- in Indo-European roots.]
n, pl -ziums or -zia (-zɪə)
1. (Mathematics) chiefly Brit a quadrilateral having two parallel sides of unequal length. Usual US and Canadian name: trapezoid
2. (Mathematics) chiefly US and Canadian a quadrilateral having neither pair of sides parallel
3. (Anatomy) a small bone of the wrist near the base of the thumb
[C16: via Late Latin from Greek trapezion, from trapeza table]
tra•pe•zi•um(trəˈpi zi əm)
n., pl. -zi•ums, -zi•a (-zi ə)
a. (in Euclidean geometry) any rectilinear quadrilateral plane figure not a parallelogram.
b. a quadrilateral plane figure of which no two sides are parallel.
c. Brit. trapezoid (def. 1a).
2. the mammalian wrist bone that articulates with the metacarpal of the first digit or thumb.
[1545–55; < New Latin < Greek trapézion kind of quadrilateral, literally, small table, diminutive of trápeza table, shortening of *tetrapeza=tetra- four + -peza foot, akin to poús; see tetra-, foot]
A four-sided figure having no parallel sides.
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|Noun||1.||trapezium - a quadrilateral with no parallel sides|
U.S.A., United States, United States of America, US, USA, America, the States, U.S. - North American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776
parallelogram - a quadrilateral whose opposite sides are both parallel and equal in length
|2.||Trapezium - a multiple star in the constellation of Orion|
multiple star - a system of three or more stars associated by gravity
|3.||trapezium - the wrist bone on the thumb side of the hand that articulates with the 1st and 2nd metacarpals|