We found 19 dictionaries that define the word heptahedron:

General (14 matching dictionaries)

1. heptahedron: Oxford Learner's Dictionaries
2. heptahedron: American Heritage Dictionary of the English Language
3. heptahedron: Collins English Dictionary
4. heptahedron: Wordnik
5. heptahedron: Wiktionary
6. heptahedron: Webster's New World College Dictionary, 4th Ed.
7. heptahedron: Infoplease Dictionary
8. Heptahedron, heptahedron: Dictionary.com
9. Heptahedron: Wikipedia, the Free Encyclopedia
10. Heptahedron: Online Plain Text English Dictionary
11. heptahedron: Webster's Revised Unabridged, 1913 Edition
12. Heptahedron: AllWords.com Multi-Lingual Dictionary
13. heptahedron: FreeDictionary.org
14. heptahedron: TheFreeDictionary.com

Art (1 matching dictionary)

15. heptahedron: ArtLex Lexicon of Visual Art Terminology

Computing (1 matching dictionary)

16. heptahedron: Encyclopedia

Medicine (1 matching dictionary)

17. online medical dictionary (No longer online)

Science (2 matching dictionaries)

18. Heptahedron: Eric Weisstein's World of Mathematics
19. heptahedron: PlanetMath Encyclopedia

Definitions from Wiktionary (heptahedron) ▸ noun:  (geometry) A polyhedron with seven faces. Similar: heptagon, pentahedron, octakishexahedron, hendecahedron, enneahedron, heptakaidecahedron, decahedron, dihedron, pentagonohedron, octahedron, more... Opposite: hexahedron, octahedron, nonahedron, decahedron ▸ Words similar to heptahedron ▸ Usage examples for heptahedron ▸ Idioms related to heptahedron ▸ Wikipedia articles (New!) ▸ Popular adjectives describing heptahedron ▸ Words that often appear near heptahedron ▸ Rhymes of heptahedron ▸ Invented words related to heptahedron