[doh-dek-uh-hee-druh n, doh-dek-]
noun, plural do·dec·a·he·drons, do·dec·a·he·dra [doh-dek-uh-hee-druh, doh-dek-] /doʊˌdɛk əˈhi drə, ˌdoʊ dɛk-/. Geometry, Crystallography.Related formsdo·dec·a·he·dral, adjective
- a solid figure having 12 faces.
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for dodecahedron
Historical Examples of dodecahedron
You might as well call it a dodecahedron, or the cube root of minus nothing.'
Iamblichus here refers to the dodecahedron inscribed in the sphere.
Cleavage obtains parallel to the dodecahedron, but is imperfect.
A cube would therefore be represented numerically by seven, a dodecahedron by thirteen.
That for the tetrahedron has 12 for its order, for the cube (or octahedron) 24, and for the icosahedron (or dodecahedron) 60.
British Dictionary definitions for dodecahedron
Derived Formsdodecahedral, adjective
- a solid figure having twelve plane faces. A regular dodecahedron has regular pentagons as facesSee also polyhedron
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for dodecahedron
1560s, from Greek dodeka "twelve" (short for duodeka, from duo "two" + deka "ten;" cf. dozen) + hedra "seat, base, chair, face of a geometric solid," from PIE root *sed- (1) "to sit" (see sedentary).
Online Etymology Dictionary, © 2010 Douglas Harper
Plural dodecahedrons dodecahedra
- A polyhedron having twelve faces.
The American Heritage® Science Dictionary
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