octahedron

[ ok-tuh-hee-druhn ]

noun

, plural oc·ta·he·drons, oc·ta·he·dra [ok-t, uh, -, hee, -dr, uh].

1. a solid figure having eight faces.

octahedron

/ ˌɒktəˈhiːdrən /

noun

1. a solid figure having eight plane faces

octahedron

/ ŏk′tə-hē′drən /

, Plural octahedrons

1. A polyhedron that has eight faces.

Word History and Origins

Origin of octahedron¹

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

Example Sentences

He doubted, for the same reason, that particles of air could be shaped like an octahedron.

From Quanta Magazine

Dmitry Fuchs proved the results for the octahedron and icosahedron the next year.

From Quanta Magazine

Of the stauraxonia isopola we have, for instance, the double pyramids, one of the simplest forms of the octahedron.

From Project Gutenberg

Its crystalline forms are very numerous, and are referrible to the octahedron, and the pyramidal prism.

From Project Gutenberg

The prevailing form of crystallization is the rectangular octahedron, whose angles and edges are variously modified.

From Project Gutenberg

The members of the group are all tetrads, and have eight funnels, opening on the eight faces of the octahedron.

From Project Gutenberg

We have again the funnel with its ovoids, but now there are eight funnels opening on the eight faces of the octahedron.

From Project Gutenberg