dodecagon

[ doh-dek-uh-gon, -guhn ]
/ doʊˈdɛk əˌgɒn, -gən /

noun Geometry.

a polygon having 12 angles and 12 sides.

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Also duodecagon.

Origin of dodecagon

First recorded in 1650–60; dodeca- + -gon

OTHER WORDS FROM dodecagon

do·de·cag·o·nal [doh-de-kag-uh-nl], /ˌdoʊ dɛˈkæg ə nl/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for dodecagon

dodecagon
/ (dəʊˈdɛkəˌɡɒn) /

noun

a polygon having twelve sides

Derived forms of dodecagon

dodecagonal (ˌdəʊdɛˈkæɡənəl), adjective
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