trapezoid

[ trap-uh-zoid ]

noun
  1. Geometry.

    • a quadrilateral plane figure having two parallel and two nonparallel sides.

  2. Anatomy. a bone in the wrist that articulates with the metacarpal bone of the forefinger.

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

Origin of trapezoid

1
First recorded in 1695–1705; from New Latin trapezoīdēs, from Late Greek trapezoeidḗs “trapezium-like”; see trapezium, -oid

Other words from trapezoid

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

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use trapezoid in a sentence

British Dictionary definitions for trapezoid

trapezoid

/ (ˈtræpɪˌzɔɪd) /


noun
  1. a quadrilateral having neither pair of sides parallel

  2. Also called: (Brit, Austral., NZ, and South African) trapezium US and Canadian a quadrilateral having two parallel sides of unequal length

  1. a small bone of the wrist near the base of the index finger

Origin of trapezoid

1
C18: from New Latin trapezoidēs, from Late Greek trapezoeidēs trapezium-shaped, from trapeza table

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for trapezoid

trapezoid

[ trăpĭ-zoid′ ]


  1. A four-sided plane figure having two parallel sides.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Cultural definitions for trapezoid

trapezoid

[ (trap-uh-zoyd) ]


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

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.