We found 7 dictionaries that define the word decagons:

General (6 matching dictionaries)

1. decagons: Merriam-Webster
2. decagons: Collins English Dictionary
3. decagons: Vocabulary.com
4. decagons: Wiktionary
5. decagons: Dictionary.com
6. decagons: TheFreeDictionary.com

Computing (1 matching dictionary)

7. decagons: Encyclopedia

(Note: See decagon as well.)

Definitions from Wiktionary (decagon) ▸ noun:  (geometry) A polygon with ten sides and ten angles. ▸ Also see decagon ▸ Words similar to decagons ▸ Usage examples for decagons ▸ Idioms related to decagons ▸ Wikipedia articles (New!) ▸ Popular adjectives describing decagons ▸ Words that often appear near decagons ▸ Rhymes of decagons ▸ Invented words related to decagons