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.

Nearby words

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

Origin of octahedron

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

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples 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

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

octahedron

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

Nearby words

Origin of octahedron

Examples from the Web for octahedron

British Dictionary definitions for octahedron

octahedron

noun plural -drons or -dra (-drə)

Science definitions for octahedron

octahedron

Plural octahedrons octahedra