a quadrilateral having two parallel sides of unequal length
Usual US and Canadian name: trapezoid
2. mainly US and Canadian
a quadrilateral having neither pair of sides parallel
3.
a small bone of the wrist near the base of the thumb
Derived forms
trapezial (traˈpezial)
adjective
Word origin
C16: via Late Latin from Greek trapezion, from trapeza table
trapezium in American English
(trəˈpiziəm; træˈpiziəm)
nounWord forms: pluraltraˈpeziums or traˈpezia (trəˈpiziə; træˈpiziə)
1.
a plane figure with four sides, no two of which are parallel
2. British
trapezoid (sense 1)
3. Anatomy
a small bone of the wrist near the base of the thumb
Word origin
LL < Gr trapezion, trapezium, lit., small table, dim. of trapeza, table, lit., four-footed bench < tra-, for tetra, four + peza, foot; akin to pous, foot