trapezium
[ truh-pee-zee-uhm ]
/ trəˈpi zi əm /
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noun, plural tra·pe·zi·ums, tra·pe·zi·a [truh-pee-zee-uh]. /trəˈpi zi ə/.
Geometry.
- (in Euclidean geometry) any rectilinear quadrilateral plane figure not a parallelogram.
- a quadrilateral plane figure of which no two sides are parallel.
- British. trapezoid (def. 1a).
Anatomy. a bone in the wrist that articulates with the metacarpal bone of the thumb.
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Origin of trapezium
OTHER WORDS FROM trapezium
tra·pe·zi·al, adjectiveWords nearby trapezium
trapes, trapeze, trapeze artist, trapezial, trapeziform, trapezium, trapezius, trapezohedron, trapezoid, trapezoidal rule, trapezoid ligament
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
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British Dictionary definitions for trapezium
trapezium
/ (trəˈpiːzɪəm) /
noun plural -ziums or -zia (-zɪə)
mainly British a quadrilateral having two parallel sides of unequal lengthUsual US and Canadian name: trapezoid
mainly US and Canadian a quadrilateral having neither pair of sides parallel
a small bone of the wrist near the base of the thumb
Derived forms of trapezium
trapezial, adjectiveWord Origin for trapezium
C16: via Late Latin from Greek trapezion, 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 trapezium
trapezium
[ trə-pē′zē-əm ]
n. pl. tra•pe•zi•ums
A quadrilateral having no parallel sides.
A bone in the wrist at the base of the thumb, articulating with the first and second metacarpal, scaphoid, and trapezoid bones.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for trapezium
trapezium
[ trə-pē′zē-əm ]
Plural trapeziums trapezia
A four-sided plane figure having no parallel sides.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.