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trapezoid

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noun trap·e·zoid \ˈtra-pə-ˌzȯid\

Simple Definition of trapezoid

  • : a four-sided shape that has two sides that are parallel and two sides that are not parallel

Full Definition of trapezoid

  1. 1a British :  trapezium 1ab :  a quadrilateral having only two sides parallel

  2. 2 :  a bone in the wrist at the base of the metacarpal of the index finger

trap·e·zoi·dal play \ˌtra-pə-ˈzȯi-dəl\ adjective

Illustration of trapezoid

Origin of trapezoid

New Latin trapezoïdes, from Greek trapezoeidēs trapezium-shaped, from trapeza table


First Known Use: circa 1706


Medical Dictionary

trapezoid

play
noun trap·e·zoid \ˈtrap-ə-ˌzȯid\

Medical Definition of trapezoid

  1. :  a bone in the distal row of the carpus at the base of the index finger—called also lesser multangular, trapezoid bone, trapezoideum



Illustration of trapezoid


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