We found 28 dictionaries that define the word behaviour:

General (19 matching dictionaries)

1. behaviour: Merriam-Webster
2. behaviour: Oxford Learner's Dictionaries
3. behaviour: American Heritage Dictionary of the English Language
4. behaviour: Collins English Dictionary
5. behaviour: Vocabulary.com
6. Behaviour, behaviour: Wordnik
7. behaviour: Cambridge Advanced Learner's Dictionary
8. behaviour: Wiktionary
9. behaviour: Webster's New World College Dictionary, 4th Ed.
10. behaviour: Infoplease Dictionary
11. behaviour: Dictionary.com
12. Behaviour (Pet Shop Boys album), Behaviour (Saga album), Behaviour (album), Behaviour (biology), Behaviour (journal), Behaviour: Wikipedia, the Free Encyclopedia
13. behaviour: Rhymezone
14. behaviour: FreeDictionary.org
15. behaviour: Mnemonic Dictionary
16. behaviour: TheFreeDictionary.com
17. behaviour: Longman Dictionary of Contemporary English

Business (2 matching dictionaries)

18. Bouvier's Law Dictionary 1856 Edition (No longer online)
19. Behaviour: Legal dictionary

Computing (1 matching dictionary)

20. behaviour: Encyclopedia

Medicine (3 matching dictionaries)

21. behaviour: Merriam-Webster Medical Dictionary
22. online medical dictionary (No longer online)
23. behaviour: Medical dictionary

Miscellaneous (1 matching dictionary)

24. behaviour: Idioms

Science (1 matching dictionary)

25. Bird On! (No longer online)

Slang (1 matching dictionary)

26. behaviour: Urban Dictionary

(Note: See behaviours as well.)

Definitions from Wiktionary ( ) ▸ noun:  British standard spelling of behavior. Similar: deportment, behavior, conduct, demeanor, demeanour, behavour, misbehaviour, behavioural, attitude, behave, more... Opposite: inaction, passivity, nonresponse, inertia, stagnation Types: conduct, behavioural pattern, more... Phrases: Human Behaviour, social behaviour, sexual behaviour, good behaviour, animal behaviour, more... Adjectives: human, social, good, sexual, aggressive, individual, actual, criminal, similar, animal, normal Colors:     blue,     red,     green,     yellow,     black, more... ▸ Words similar to behaviour ▸ Usage examples for behaviour ▸ Idioms related to behaviour ▸ Wikipedia articles (New!) ▸ Popular adjectives describing behaviour ▸ Words that often appear near behaviour ▸ Rhymes of behaviour ▸ Invented words related to behaviour