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trapezoid

[ trap-uh-zoid ]

noun

  1. Geometry.
    1. 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.

trapezoid

/ ˈtræpɪˌzɔɪd /

noun

  1. a quadrilateral having neither pair of sides parallel
  2. Also calledBrit, Austral., NZ, and South Africantrapezium a quadrilateral having two parallel sides of unequal length
  3. a small bone of the wrist near the base of the index finger
“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


trapezoid

/ trăpĭ-zoid′ /

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


trapezoid

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


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Other Words From

  • post·trape·zoid adjective
  • sub·trape·zoid adjective
  • subtrap·e·zoidal adjective
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Word History and Origins

Origin of trapezoid1

First recorded in 1695–1705; from New Latin trapezoīdēs, from Late Greek trapezoeidḗs “trapezium-like”; trapezium, -oid
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Word History and Origins

Origin of trapezoid1

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

Most dynamic are the pictures in which jauntily arranged trapezoids, grouped tightly together, appear to fracture.

Each number was fractured into a number of parts indicating how many trapezoids it could form.

Is any thing here added to the conception of each trapezoid?

The second trapezoid is composed of pieces which can be placed in the rectangle, filling it completely.

Trapezoid -al: a four-sided plane of which two sides are parallel and two are not.

Another drawer contains various figures: an oval, an ellipse, a rhombus, and a trapezoid.

Arms trapezoid, at the base half as broad, at the distal end twice as broad as the triopyle-shaped medullary shell.

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trapezohedrontrapezoidal rule