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Webster 1913 Edition


Octagon

Oc′ta-gon

,
Noun.
[Gr. [GREEK] eight-cornered;
ὀκτα-
(for
ὀκτώ
eight) + [GREEK] an angle: cf. F.
cctogone
.]
1.
(Geom.)
A plane figure of eight sides and eight angles.
2.
Any structure (as a fortification) or place with eight sides or angles.
Regular octagon
,
one in which the sides are all equal, and the angles also are all equal.

Webster 1828 Edition


Octagon

OC'TAGON

,
Noun.
[Gr. eight and angle.]
1.
In geometry, a figure of eight sides and eight angles. When the sides and angles are equal, it is a regular octagon which may be inscribed in a circle.
2.
In fortification, a place with eight bastions.

Definition 2024


octagon

octagon

See also: octàgon

English

A regular octagon

Noun

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.

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