We found 12 dictionaries that define the word bissextile year:

General (9 matching dictionaries)

1. bissextile year: Merriam-Webster
2. bissextile year: Vocabulary.com
3. bissextile year: Wordnik
4. bissextile year: Wiktionary
5. Bissextile year, bissextile year: Dictionary.com
6. bissextile year: Rhymezone
7. bissextile year: FreeDictionary.org
8. bissextile year: Mnemonic Dictionary
9. bissextile year: TheFreeDictionary.com

Business (1 matching dictionary)

10. bissextile year: Legal dictionary

Computing (1 matching dictionary)

11. bissextile year: Encyclopedia

Science (1 matching dictionary)

12. How Many? A Dictionary of Units of Measurement (No longer online)

(Note: See bissextile_years as well.)

Definitions from Wiktionary (bissextile year) ▸ noun:  a year with an extra day, a leap year Similar: leap year, 366 days, intercalary year, bissextile month, bissext, leap day, leap second, equinoctial year, biennium, leap week, more... ▸ Words similar to bissextile year ▸ Usage examples for bissextile year ▸ Idioms related to bissextile year ▸ Wikipedia articles (New!) ▸ Words that often appear near bissextile year ▸ Rhymes of bissextile year ▸ Invented words related to bissextile year