We found 4 dictionaries that define the word undecahedron:

General (1 matching dictionary)

1. undecahedron: Wiktionary

Computing (1 matching dictionary)

2. undecahedron: Encyclopedia

Science (2 matching dictionaries)

3. Undecahedron: Eric Weisstein's World of Mathematics
4. undecahedron: PlanetMath Encyclopedia

Definitions from Wiktionary (undecahedron) ▸ noun:  (geometry) A polyhedron with eleven faces. ▸ Words similar to undecahedron ▸ Usage examples for undecahedron ▸ Idioms related to undecahedron ▸ Wikipedia articles (New!) ▸ Popular adjectives describing undecahedron ▸ Words that often appear near undecahedron ▸ Rhymes of undecahedron ▸ Invented words related to undecahedron