We found 17 dictionaries that define the word enneagon:

General (13 matching dictionaries)

1. enneagon: Collins English Dictionary
2. enneagon: Wordnik
3. enneagon: Wiktionary
4. enneagon: Infoplease Dictionary
5. Enneagon, enneagon: Dictionary.com
6. Enneagon: Wikipedia, the Free Encyclopedia
7. Enneagon: Online Plain Text English Dictionary
8. enneagon: Webster's Revised Unabridged, 1913 Edition
9. Enneagon: AllWords.com Multi-Lingual Dictionary
10. enneagon: Webster's 1828 Dictionary
11. enneagon: FreeDictionary.org
12. enneagon: The Phrontistery - A Dictionary of Obscure Words
13. enneagon: TheFreeDictionary.com

Computing (1 matching dictionary)

14. enneagon: Encyclopedia

Medicine (1 matching dictionary)

15. online medical dictionary (No longer online)

Science (1 matching dictionary)

16. Enneagon: Eric Weisstein's World of Mathematics

Tech (1 matching dictionary)

17. Enneagon: Dictionary of Military Architecture

Definitions from Wiktionary (enneagon) ▸ noun:  (geometry) A polygon with nine sides; a nonagon. Similar: nonagon, enneadecagon, enneacontahexagon, decagon, icosagon, undecagon, exagon, octadecagon, septagon, octacontagon, more... ▸ Words similar to enneagon ▸ Usage examples for enneagon ▸ Idioms related to enneagon ▸ Wikipedia articles (New!) ▸ Popular adjectives describing enneagon ▸ Words that often appear near enneagon ▸ Rhymes of enneagon ▸ Invented words related to enneagon