Octagon meaning

ŏktə-gŏn
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A polygon with eight sides and eight angles.
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A polygon having eight sides.
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(martial arts, usually capitalized) The arena for mixed martial arts, particularly as trademarked by the UFC.
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The definition of an octagon is an eight-sided, eight-angled figure.

An example of an octagon is the shape of a stop sign in the US.

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A plane figure with eight angles and eight sides.
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(geometry) A polygon with eight sides and eight angles.
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Origin of octagon

  • Latin octagōnon from Greek oktagōnon from neuter of oktagōnos octagonal okta- octo- -gōnos angled –gon

    From American Heritage Dictionary of the English Language, 5th Edition

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

    From Wiktionary