dodecahedron

American  

[doh-dek-uh-hee-druhn, doh-dek-] / doʊˌdɛk əˈhi drən, ˌdoʊ dɛk- /

noun

Geometry, Crystallography.

plural

dodecahedrons, dodecahedra

1. a solid figure having 12 faces.

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dodecahedron British  

/ ˌdəʊdɛkəˈhiːdrən /

noun

1. a solid figure having twelve plane faces. A regular dodecahedron has regular pentagons as faces See also polyhedron

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dodecahedron Scientific  

/ dō′dĕk-ə-hē′drən /

plural

dodecahedrons

1. A polyhedron having twelve faces.

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Other Word Forms

• dodecahedral adjective

Etymology

Origin of dodecahedron

First recorded in 1560–70; dodeca- + -hedron

Example Sentences

Some creative types have also taken it one step further and produced YouTube crafting tutorials using a plastic model of a dodecahedron.

From BBC

The group of volunteers plans to return to the area where the dodecahedron was found in the hope of unearthing more clues.

From BBC

You start out with a simple solid — most frequently a dodecahedron, or a solid with twelve pentagonal faces — and then form the star’s points by extruding each edge.

From New York Times

Granted, the shape is dramatically different than the one that existed when minor-league ball was shuttered last summer — like a square becoming a dodecahedron.

From Seattle Times

These are the five convex polyhedra—tetrahedron, cube, octahedron, dodecahedron, and icosahedron—that are made of congruent regular polygons.

From Scientific American