trapezoid

[ trap-uh-zoid ]
/ ˈtræp əˌzɔɪd /

noun

Geometry.
  1. a quadrilateral plane figure having two parallel and two nonparallel sides.
  2. British. trapezium(def 1b).
Anatomy. a bone in the wrist that articulates with the metacarpal bone of the forefinger.

adjective

Also trap·e·zoi·dal. Geometry. of, relating to, or having the form of a trapezoid.

Origin of trapezoid

1695–1705; < New Latin trapezoīdēs < Late Greek trapezoeidḗs trapeziumlike. See trapezium, -oid

OTHER WORDS FROM trapezoid

post·trap·e·zoid, adjective sub·trap·e·zoid, adjective sub·trap·e·zoi·dal, adjective

Words nearby trapezoid

trapezial, trapeziform, trapezium, trapezius, trapezohedron, trapezoid, trapezoid ligament, trapezoid line, trapezoid rule, trapezoidal rule, traplight

Example sentences from the Web for trapezoid

British Dictionary definitions for trapezoid

trapezoid
/ (ˈtræpɪˌzɔɪd) /

noun

a quadrilateral having neither pair of sides parallel
Also called: (Brit, Austral., NZ, and South African) trapezium US and Canadian a quadrilateral having two parallel sides of unequal length
a small bone of the wrist near the base of the index finger

Word Origin for trapezoid

C18: from New Latin trapezoidēs, from Late Greek trapezoeidēs trapezium-shaped, from trapeza table

Medical definitions for trapezoid

trapezoid
[ trăp′ĭ-zoid′ ]

n.

A quadrilateral having two parallel sides.
A small bone in the wrist that is situated near the base of the index finger and that articulates with the second metacarpal, trapezium, capitate, and scaphoid bones.

Other words from trapezoid

trap′e•zoid′ null adj.

Scientific definitions for trapezoid

trapezoid
[ trăp′ĭ-zoid′ ]

A four-sided plane figure having two parallel sides.

Cultural definitions for trapezoid

trapezoid
[ (trap-uh-zoyd) ]

A four-sided polygon in which two sides are parallel and two are not.