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do·dec·a·he·dron

(dō′dĕk-ə-hēdrən)

n. pl. do·dec·a·he·drons or do·dec·a·he·dra (-drə)

A polyhedron with 12 faces.

[Greek dōdekaedron, from neuter of Greek dōdekaedros, having twelve sides : dōdeka, twelve; see DODECAGON + -edros, sided; see -HEDRON.]

do′dec·a·hedral adj.

(click for a larger image)

dodecahedron

Indo-European & Semitic Roots Appendices

Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:

Indo-European Roots

Semitic Roots

The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.

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