octagon

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See also: octàgon

English[edit]

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A regular octagon

Etymology[edit]

First attested in 1656, from Latin octagonos, from Ancient Greek οκτάγωνος(oktágōnos, eight-angled), from ὀκτώ(oktṓ, eight) + γωνία(gōnía, angle). The adjective octagonal was first mentioned from 1571.

Pronunciation[edit]

Noun[edit]

octagon ‎(plural octagons)

  1. (geometry) A polygon with eight sides and eight angles.
  2. (martial arts, usually capitalized) The arena for mixed martial arts, particularly as trademarked by the UFC.

Related terms[edit]

Translations[edit]