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Webster 1913 Edition


octahedron

ocˊta-he′dron

(ŏkˊtȧ-hē′drŏn)
,
Noun.
[Gr.
ὀκτάεδρον
, fr.
ὀκτάεδροσ
eight-sided;
ὀκτα-
(for
ὀκτώ
eight) +
ἕδρα
seat, base, from
ἕζεσθαι
to sit.]
(Geom.)
A solid bounded by eight faces. The regular octahedron is contained by eight equal equilateral triangles.

Webster 1828 Edition


Octahedron

OCTAHE'DRON

,
Noun.
[Gr. eight and a base.]
In geometry, a solid contained by eight equal and equilateral triangles. it is one of the five regular bodies.

Definition 2024


octahedron

octahedron

English

An octahedron

Noun

octahedron (plural octahedra or octahedrons)

  1. (geometry) a polyhedron with eight faces; the regular octahedron has regular triangles as faces and is one of the Platonic solids.

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