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

Derived Forms

• ocˈtagonally, adverb

Other Words From

• oc·tago·nal·ly 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.

From Seattle Times

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

From BBC

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

From Literature

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.

From New York Times

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

From BBC