trapezium

• POS: Noun
• HYPHEN: tra=pe=zi=um

CIDE DICTIONARY

trapezium, n. [NL., fr. Gr. a little table, an irregular four-sided figure, dim. of a table, for ; (see Tetra-) + foot, akin to foot; hence, originally, a table with four feet. See Foot.].

•  A plane figure bounded by four right lines, of which no two are parallel.  [1913 Webster]
•  A bone of the carpus at the base of the first metacarpal, or thumb.  [1913 Webster]

OXFORD DICTIONARY

trapezium, n. (pl. trapezia or trapeziums)
1 Brit. a quadrilateral with only one pair of sides parallel.
2 US = TRAPEZOID 1.

Etymology

LL f. Gk trapezion f. trapeza table