quadrilateral
[kwod-ruh-lat-er-uh l]
- having four sides.
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- a plane figure having four sides and four angles.
- something of this form.
- Geometry.
- a figure formed by four straight lines that have six points of intersection.
- a polygon with four sides.
- the space enclosed between and defended by four fortresses.
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Origin of quadrilateral
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for quadrilateral
Historical Examples
They form the quadrilateral wherein Daudet's fame is secure.
The Nabob, Volume 1 (of 2)Alphonse Daudet
A quadrilateral figure that has only two of its four sides parallel.
The Sailor's Word-BookWilliam Henry Smyth
Thus, in the circle and the quadrilateral (the parts are not circles or quadrilaterals).
Plotinos: Complete Works, v. 2Plotinos (Plotinus)
The walled part of the town is a quadrilateral with faces of about 1200 yds.
The quadrilateral Isis-headed capital, as at Denderah, was often used.
A Manual of the Historical Development of ArtG. G. (Gustavus George) Zerffi
quadrilateral
- having or formed by four sides
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- Also called: tetragon a polygon having four sides. A complete quadrilateral consists of four lines and their six points of intersection
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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
Word Origin and History for quadrilateral
Online Etymology Dictionary, © 2010 Douglas Harper
quadrilateral
[kwŏd′rə-lăt′ər-əl]
- A polygon that has four sides, such as a rectangle or rhombus.
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The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.