trapezoid

[ trap-uh-zoid ]

/ ˈtræp əˌzɔɪd /

noun

Geometry.

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

QUIZZES

CHALLENGE YOURSELF WITH THIS MIDDLE SCHOOL PART OF SPEECH QUIZ!

How well do you know your adjectives from your adverbs? Your preposition from your pronouns? Your interjections from your conjunctions? Let’s put your knowledge of parts of speech to the text! Note: Many of the following questions will ask you to identify the parts of speech “in order.” That means the first word in all capital letters will correspond to the first option in an answer, and so on.

Question 1 of 10

In order, what parts of speech are the words in all capital letters? Alisa was VERY tired, SO she decided to go to bed.

adverb, adverb

adverb, conjunction

adjective, conjunction

TAKE THE QUIZ TO FIND OUT

Origin of trapezoid

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

OTHER WORDS FROM trapezoid

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

Words nearby trapezoid

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

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for trapezoidal

Bounded by twenty-four trapezoidal faces, and hence sometimes called a “trapezohedron.”
Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7|Various
A section across the middle of the implement would be trapezoidal with incurved sides.
Throwing-sticks in the National Museum|Otis T. Mason
It has a roughly oval beehive shape with a trapezoidal framed opening in which a pottery door fits snugly.
North Devon Pottery and Its Export to America in the 17th Century|C. Malcolm Watkins
Trigonal trapezohedron (fig. 74), bounded by six trapezoidal faces.
Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7|Various

The ground-plan is trapezoidal, and the walls rise vertically for a few feet, and are then rounded off into an arch.
The Ceramic Art|Jennie J. Young

British Dictionary definitions for trapezoidal

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

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

Medical definitions for trapezoidal

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 trapezoidal

trapezoid

[ trăp′ĭ-zoid′ ]

A four-sided plane figure having two parallel sides.

Cultural definitions for trapezoidal

trapezoid

[ (trap-uh-zoyd) ]

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