octagonal

[ok-tag-uh-nl]

adjective

1. having eight angles and eight sides.

octagonal

/ ɒkˈtæɡənəl /

adjective

1. having eight sides and eight angles

2. of or relating to an octagon

Other Word Forms

• octagonally adverb

Word History and Origins

Origin of octagonal¹

1565–75; octagon + -al ¹, replacing earlier octogonal < New Latin octōgōnālis, equivalent to octō- octo- + Greek gōn ( ía ) angle + -ālis -al ¹

Example Sentences

There’s dark woodwork, octagonal pillars, curlicues of ironwork in the old-fashioned windows, carved details of garlands and flowers and urns.

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Some of the findings are "unique" for South America, he explains, pointing to the octagonal and rectangular platforms arranged together.

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Along its octagonal walls, bright banners displayed each Arcanum tenet: integrity, self-control, perseverance, goodness.

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In the decades following the publication of “The Octagon House: A Home for All,” octagonal homes “broke out in New York State like a rash,” as an article in this newspaper put it.

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The bronze sword with an octagonal hilt was found in a grave in the southern town of Nördlingen.

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