We found 20 dictionaries that define the word quadrennial:

General (17 matching dictionaries)

1. quadrennial: Merriam-Webster
2. quadrennial: Oxford Learner's Dictionaries
3. quadrennial: American Heritage Dictionary of the English Language
4. quadrennial: Collins English Dictionary
5. Quadrennial, quadrennial: Wordnik
6. quadrennial: Wiktionary
7. quadrennial: Webster's New World College Dictionary, 4th Ed.
8. quadrennial: The Wordsmyth English Dictionary-Thesaurus
9. quadrennial: Infoplease Dictionary
10. Quadrennial, quadrennial: Dictionary.com
11. Quadrennial: Online Plain Text English Dictionary
12. quadrennial: Webster's Revised Unabridged, 1913 Edition
13. Quadrennial: AllWords.com Multi-Lingual Dictionary
14. quadrennial: Webster's 1828 Dictionary
15. quadrennial: FreeDictionary.org
16. quadrennial: The Phrontistery - A Dictionary of Obscure Words
17. quadrennial: TheFreeDictionary.com

Art (1 matching dictionary)

18. ODLIS: Online Dictionary of Library and Information Science (No longer online)

Computing (1 matching dictionary)

19. quadrennial: Encyclopedia

Miscellaneous (1 matching dictionary)

20. quadrennial: A Word A Day

(Note: See quadrennially as well.)

Definitions from Wiktionary (quadrennial) ▸ adjective:  Happening every four years. ▸ adjective:  Lasting for four years. ▸ noun:  A four-year period, a quadrennium. Similar: quadriennial, quadannual, triennial, hexennial, quadrimillennial, triannual, sesquiannual, quindecennial, sesquiennial, quadranscentennial, more... Opposite: annual, biennial, triennial, semi-annual Types: leap year, olympic year, fiscal year, more... Phrases: Quadrennial Defense Review, more... ▸ Words similar to quadrennial ▸ Usage examples for quadrennial ▸ Idioms related to quadrennial ▸ Wikipedia articles (New!) ▸ Popular adjectives describing quadrennial ▸ Popular nouns described by quadrennial ▸ Words that often appear near quadrennial ▸ Rhymes of quadrennial ▸ Invented words related to quadrennial