# quadrilateral

[ kwod-ruh-lat-er-uh l ]

/ ˌkwɒd rəˈlæt ər əl /

### adjective

having four sides.

### noun

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.

## Words nearby quadrilateral

## OTHER WORDS FROM quadrilateral

quad·ri·lat·er·al·ly, adverbquad·ri·lat·er·al·ness, nounDictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

## Examples from the Web for quadrilateral

## British Dictionary definitions for quadrilateral

quadrilateral

/ (ˌkwɒdrɪˈlætərəl) /

### adjective

having or formed by four sides

### noun

Also called: tetragon a polygon having four sides. A complete quadrilateral consists of four lines and their six points of intersection

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

## Scientific definitions for quadrilateral

quadrilateral

[ kwŏd′rə-lăt′ər-əl ]

A polygon that has four sides, such as a rectangle or rhombus.

The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.