We found 28 dictionaries that define the word dodecagon:

General (20 matching dictionaries)

1. dodecagon: Merriam-Webster
2. dodecagon: Oxford Learner's Dictionaries
3. dodecagon: American Heritage Dictionary of the English Language
4. dodecagon: Collins English Dictionary
5. dodecagon: Vocabulary.com
6. dodecagon: Wordnik
7. dodecagon: Wiktionary
8. dodecagon: Webster's New World College Dictionary, 4th Ed.
9. dodecagon: The Wordsmyth English Dictionary-Thesaurus
10. dodecagon: Infoplease Dictionary
11. Dodecagon, dodecagon: Dictionary.com
12. Dodecagon: Wikipedia, the Free Encyclopedia
13. Dodecagon: Online Plain Text English Dictionary
14. dodecagon: Webster's Revised Unabridged, 1913 Edition
15. dodecagon: Rhymezone
16. Dodecagon: AllWords.com Multi-Lingual Dictionary
17. dodecagon: Webster's 1828 Dictionary
18. dodecagon: FreeDictionary.org
19. dodecagon: Mnemonic Dictionary
20. dodecagon: TheFreeDictionary.com

Art (1 matching dictionary)

21. dodecagon: ArtLex Lexicon of Visual Art Terminology

Computing (1 matching dictionary)

22. dodecagon: Encyclopedia

Medicine (1 matching dictionary)

23. online medical dictionary (No longer online)

Science (4 matching dictionaries)

24. A Glossary of Mathematical Terms (No longer online)
25. Dodecagon: Eric Weisstein's World of Mathematics
26. dodecagon: MATH SPOKEN HERE!
27. dodecagon: PlanetMath Encyclopedia

Tech (1 matching dictionary)

28. Dodecagon: Dictionary of Military Architecture

(Note: See dodecagons as well.)

Definitions from Wiktionary (dodecagon) ▸ noun:  (geometry) A polygon with twelve edges and twelve angles. Similar: duodecagon, undecagon, hexadecagon, hendecagon, decagon, dodecagram, dodecadodecahedron, tridecagon, octadecagon, truncated dodecahedron, more... Opposite: undecagon, hendecagon Adjectives: regular, inscribed, circumscribed, whole, third, white, equilateral, equiangular, rhomboid, geometrical ▸ Words similar to dodecagon ▸ Usage examples for dodecagon ▸ Idioms related to dodecagon ▸ Wikipedia articles (New!) ▸ Popular adjectives describing dodecagon ▸ Words that often appear near dodecagon ▸ Rhymes of dodecagon ▸ Invented words related to dodecagon