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[pol-ee-gon] /ˈpɒl iˌgɒn/
a figure, especially a closed plane figure, having three or more, usually straight, sides.
Origin of polygon
1560-70; < Latin polygōnum < Greek polýgōnon, noun use of neuter of polýgōnos many-angled. See poly-, -gon
Related forms
[puh-lig-uh-nl] /pəˈlɪg ə nl/ (Show IPA),
polygonally, adverb
subpolygonal, adjective
subpolygonally, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for polygon
  • The sheeting of collectors would be mounted on a polygon frame so the fluted collector is in plan-view triangular supported.
  • Fittingly, the basement space is shaped like a jagged polygon.
  • In the center we have a heptagon, that is to say a seven sided polygon.
  • To maximize the area of a polygon of a given perimeter is to equalize its sides as far as possible.
  • The displays can also help with what are known as polygon studies for retailers.
  • The angle between any side of a polygon and an extended adjacent side.
  • The indexer can also handle square, hexagon or other polygon shapes of various thicknesses.
  • The software stores the coordinates of each polygon, and applies algorithms to animate them.
  • As computing power increased and the figures became more fleshed out, that polygon-created flesh was mostly likely white.
  • polygon coverage for outcrops or bedrock exposures examined during this study.
British Dictionary definitions for polygon


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
Derived Forms
polygonal (pəˈlɪɡənəl) adjective
polygonally, adverb
Word Origin
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
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Word Origin and History for 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
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polygon in Science
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 © 2002. Published by Houghton Mifflin. All rights reserved.
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polygon in Culture

polygon definition

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

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