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octangular

[ok-tang-gyuh-ler]
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adjective
  1. having eight angles.
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Origin of octangular

1635–45; < Late Latin octangul(us) (see octangle) + -ar1
Related formsoc·tan·gu·lar·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for octangular

octangular

adjective
  1. having eight angles
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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