octahedron

[ ok-tuh-hee-druhn ]

/ ˌɒk təˈhi drən /

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noun, plural oc·ta·he·drons, oc·ta·he·dra

[ok-tuh-hee-druh]. /ˌɒk təˈhi drə/.

a solid figure having eight faces.

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Origin of octahedron

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

Words nearby octahedron

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

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use octahedron in a sentence

He doubted, for the same reason, that particles of air could be shaped like an octahedron.
Undergraduates Hunt for Special Tetrahedra That Fit Together|Kevin Hartnett|February 9, 2021|Quanta Magazine
Dmitry Fuchs proved the results for the octahedron and icosahedron the next year.
The Crooked Geometry of Round Trips|Patrick Honner|January 13, 2021|Quanta Magazine
Of the stauraxonia isopola we have, for instance, the double pyramids, one of the simplest forms of the octahedron.
The Wonders of Life|Ernst Haeckel
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

The prevailing form of crystallization is the rectangular octahedron, whose angles and edges are variously modified.
A Dictionary of Arts, Manufactures and Mines|Andrew Ure
The members of the group are all tetrads, and have eight funnels, opening on the eight faces of the octahedron.
Occult Chemistry|Annie Besant and Charles W. Leadbeater
We have again the funnel with its ovoids, but now there are eight funnels opening on the eight faces of the octahedron.
Occult Chemistry|Annie Besant and Charles W. Leadbeater

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

Scientific definitions for octahedron

octahedron

[ ŏk′tə-hē′drən ]

Plural octahedrons octahedra

A polyhedron that has eight faces.