OCTAHEDRON

octahedron

(noun) any polyhedron having eight plane faces

Source: WordNet® 3.1

Etymology

Noun

octahedron (plural octahedra or octahedrons)

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

Source: Wiktionary

Oc`ta*he"dron, n. Etym: [Gr. (Geom.)

Definition: A solid bounded by eight faces. The regular octahedron is contained by eight equal equilateral triangles.

Source: Webster’s Unabridged Dictionary 1913 Edition

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