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octahedron

[ ok-tuh-hee-druh n ]

/ ˌɒk təˈhi drən /

noun, plural oc·ta·he·drons, oc·ta·he·dra [ok-tuh-hee-druh] /ˌɒk təˈhi drə/.

a solid figure having eight faces.

Origin of octahedron

1560–70; < Greek oktáedron eight-sided (neuter of oktáedros), equivalent to okta- octa- + -edron -hedron

Words nearby octahedron

octagon house, octagon scale, octagonal, octahedral, octahedrite, octahedron, octal, octal notation, octamer, octamerous, octameter

Example sentences from the Web for octahedron

The other piece of money in circulation was octahedron in shape or form.

Memoirs of Orange Jacobs |Orange Jacobs
Both "octahedron / octahedral" and "octohedron / octohedral" occur and have not been changed.

A Guide to the Mount's Bay and the Land's End |John Ayrton Paris
Its crystalline forms are very numerous, and are referrible to the octahedron, and the pyramidal prism.

A Dictionary of Arts, Manufactures and Mines |Andrew Ure
That for the tetrahedron has 12 for its order, for the cube (or octahedron) 24, and for the icosahedron (or dodecahedron) 60.

Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 6 |Various

A cube may be inscribed in an octahedron, its vertices being at the centers of the faces of the octahedron.

The Teaching of Geometry |David Eugene Smith

British Dictionary definitions for octahedron

octahedron

/ (ˌɒktəˈhiːdrən) /

noun plural -drons or -dra (-drə)

a solid figure having eight plane faces

Scientific definitions for octahedron

octahedron

[ ŏk′tə-hē′drən ]

Plural octahedrons octahedra

A polyhedron that has eight faces.