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| the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language). |
| (used as a nonsense word by children to express approval or to represent the longest word in English.) |
| dodecahedron (ˌdəʊdɛkəˈhiːdrən) | |
| —n | |
| See also polyhedron a solid figure having twelve plane faces. A regular dodecahedron has regular pentagons as faces | |
| dodeca'hedral | |
| —adj | |
| dodecahedron (dō'děk-ə-hē'drən) Pronunciation Key
Plural dodecahedrons or dodecahedra A polyhedron having twelve faces. |