zi noun, plural tra·pe·zi·ums, tra·pe·zi·a 
[-zee-uh] .
[-zee-uh] . 1.
Geometry.
a.
(in Euclidean geometry) any rectilinear quadrilateral plane figure not a parallelogram.
b.
a quadrilateral plane figure of which no two sides are parallel.
c.
2.
Anatomy. a bone in the wrist that articulates with the metacarpal bone of the thumb.
Origin:
1545–55; < Neo-Latin < Greek trapézion kind of quadrilateral, literally, small table, equivalent to trápez(a) table (shortening of *tetrapeza object having four feet, equivalent to tetra- four + péza foot, akin to poús, podós; see tetra-, foot) + -ion diminutive suffix
1545–55; < Neo-Latin < Greek trapézion kind of quadrilateral, literally, small table, equivalent to trápez(a) table (shortening of *tetrapeza object having four feet, equivalent to tetra- four + péza foot, akin to poús, podós; see tetra-, foot) + -ion diminutive suffix
Related forms
tra·pe·zi·al, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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|
Link To trapezium
00:10
Trapezium
is always a great word to know.
So is lunate. Does it mean:
| second bone from the thumb side of the proximal row of bones of the carpus |
| the flat, movable bone at the front of the knee; the kneecap |
Collins
World English Dictionary
trapezium (trəˈpiːzɪəm) ![[Click for IPA pronunciation guide]](http://static.sfdict.com/dictstatic/g/d/dictionary_questionbutton_default.gif) | |
| —n , pl -ziums, -zia | |
| 1. | chiefly (Brit) Usual US and Canadian name: trapezoid a quadrilateral having two parallel sides of unequal length |
| 2. | chiefly (US), (Canadian) a quadrilateral having neither pair of sides parallel |
| 3. | a small bone of the wrist near the base of the thumb |
| [C16: via Late Latin from Greek trapezion, from trapeza table] | |
| tra'pezial | |
| —adj | |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History
trapezium
1570, from L.L. trapezium, from Gk. trapezion "irregular quadrilateral," lit. "a little table," dim. of trapeza "table," from tra- "four" (see four) + peza "foot, edge," related to pous (see foot). Before 1546, L. editions of Euclid used the Arabic
word helmariphe. As the name of a bone in the wrist, it is recorded from 1840.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary
trapezium tra·pe·zi·um (trə-pē'zē-əm)
n. pl. tra·pe·zi·ums or tra·pe·zi·a (-zē-ə)
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.
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Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
| trapezium (trə-pē'zē-əm) Pronunciation Key
Plural trapeziums or trapezia A four-sided plane figure having no parallel sides. |
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Nearby Words
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