We found 24 dictionaries that define the word extensional:

General (16 matching dictionaries)

1. extensional: Merriam-Webster
2. extensional: Oxford Learner's Dictionaries
3. extensional: Collins English Dictionary
4. extensional: Vocabulary.com
5. Extensional, extensional: Wordnik
6. extensional: Wiktionary
7. Extensional, extensional: Dictionary.com
8. Extensional: Wikipedia, the Free Encyclopedia
9. Extensional: Online Plain Text English Dictionary
10. extensional: Webster's Revised Unabridged, 1913 Edition
11. extensional: Rhymezone
12. Extensional: AllWords.com Multi-Lingual Dictionary
13. extensional: Webster's 1828 Dictionary
14. extensional: FreeDictionary.org
15. extensional: Mnemonic Dictionary
16. extensional: TheFreeDictionary.com

Business (2 matching dictionaries)

17. extensional: Legal dictionary
18. extensional: Financial dictionary

Computing (2 matching dictionaries)

19. extensional: Free On-line Dictionary of Computing
20. extensional: Encyclopedia

Medicine (2 matching dictionaries)

21. online medical dictionary (No longer online)
22. extensional: Medical dictionary

Science (2 matching dictionaries)

23. extensional: PlanetMath Encyclopedia
24. FOLDOP - Free On Line Dictionary Of Philosophy (No longer online)

(Note: See extensionality as well.)

Definitions from Wiktionary (extensional) ▸ adjective:  Of or pertaining to extension. ▸ adjective:  Having great extent. Similar: denotative, denotive, extentional, expansional, expansionistic, expansile, prolongational, intensional, elongatory, tensile, more... Opposite: intensional, comprehensive, qualitative, subjective, abstract Types: teleological, utilitarian, deontological, aesthetic, more... Phrases: extensional fault, extensional definition, extensional equality, extensional rheometer, extensional rheology, more... ▸ Words similar to extensional ▸ Usage examples for extensional ▸ Idioms related to extensional ▸ Wikipedia articles (New!) ▸ Popular nouns described by extensional ▸ Words that often appear near extensional ▸ Rhymes of extensional ▸ Invented words related to extensional