# polygon

[ pol-ee-gon ]

/ ˈpɒl iˌgɒn /

### noun

a figure, especially a closed plane figure, having three or more, usually straight, sides.

## RELATED WORDS

shape, form, octagon, decagon, pentagon, triangle, quadrangle, hexagon, quadrilateral, parallelogram

## Nearby words

- polygenous,
- polyglandular,
- polyglandular deficiency syndrome,
- polyglot,
- polygnotus,
- polygonaceous,
- polygonum,
- polygraph,
- polygynist,
- polygynous

## Origin of polygon

Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

## Examples from the Web for polygon

## polygon

/ (ˈpɒlɪˌɡɒn) /

### noun

a closed plane figure bounded by three or more straight sides that meet in pairs in the same number of vertices, and do not intersect other than at these vertices. The sum of the interior angles is (n –2) × 180° for n sides; the sum of the exterior angles is 360°. A regular polygon has all its sides and angles equal. Specific polygons are named according to the number of sides, such as triangle, pentagon, etc

## Word Origin for polygon

C16: via Latin from Greek polugōnon figure with many angles

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

## polygon

1570s, from Latin polygonum, from Greek polygonon, noun use of neuter of adjective polygonos "many-angled," from polys "many" (see poly-) + -gonos "angled," from gonia "angle" (see knee (n.)). Related: Polygonal.

Online Etymology Dictionary, © 2010 Douglas Harper

## polygon

[ pŏl′ē-gŏn′ ]

A closed plane figure having three or more sides. Triangles, rectangles, and octagons are all examples of polygons.♦ A regular polygon is a polygon all of whose sides are the same length and all of whose interior angles are the same measure.

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

## polygon

In geometry, a closed figure having three or more sides and lying on one plane.

The New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.