octagon

[ ok-tuh-gon, -guh n ]
/ ˈɒk təˌgɒn, -gən /

noun

a polygon having eight angles and eight sides.

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Also called octangle.

Origin of octagon

1650–60; < Latin octagōnon < Greek oktágōnon, noun use of neuter of oktágōnos octangular; see octa-, -gon
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for octagon

British Dictionary definitions for octagon

octagon

less commonly octangle

/ (ˈɒktəɡən) /

noun

a polygon having eight sides

Word Origin for octagon

C17: via Latin from Greek oktagōnos, having eight 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

Scientific definitions for octagon

octagon
[ ŏktə-gŏn′ ]

A polygon having eight sides.

Other words from octagon

octagonal adjective (ŏk-tăgə-nəl)
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Cultural definitions for octagon

octagon

A polygon having eight sides.

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.