We found 29 dictionaries that define the word mores:

General (22 matching dictionaries)

1. mores: Longman Dictionary of Contemporary English
2. mores: Merriam-Webster
3. mores: Oxford Learner's Dictionaries
4. mores: American Heritage Dictionary of the English Language
5. mores: Collins English Dictionary
6. mores: Vocabulary.com
7. More's, Mores, more's, mores, mores, mores: Wordnik
8. mores: Cambridge Advanced Learner's Dictionary
9. mores: Wiktionary
10. mores: Webster's New World College Dictionary, 4th Ed.
11. mores: The Wordsmyth English Dictionary-Thesaurus
12. mores: Infoplease Dictionary
13. mores: Dictionary.com
14. mores: Online Etymology Dictionary
15. mores: Cambridge Essential American English Dictionary
16. Mores: Wikipedia, the Free Encyclopedia
17. mores: Rhymezone
18. mores: FreeDictionary.org
19. mores: Mnemonic Dictionary
20. mores: TheFreeDictionary.com

Business (1 matching dictionary)

21. mores: Legal dictionary

Computing (1 matching dictionary)

22. mores: Encyclopedia

Medicine (1 matching dictionary)

23. online medical dictionary (No longer online)

Miscellaneous (3 matching dictionaries)

24. Sociology (No longer online)
25. Mores: Africa Glossary
26. MORES: Acronym Finder

Science (1 matching dictionary)

27. Archaeology Wordsmith (No longer online)

(Note: See moress as well.)

Definitions from Wiktionary ( ) ▸ noun:  A set of moral norms or customs derived from generally accepted practices rather than written laws. Similar: additional, further, added, More Than, to a greater extent, moeurs, moral, mora, moorie, moresome, more... Opposite: taboos Types: legal, social, religious, cultural, more... Phrases: social mores, sexual mores, contra bonos mores, mores the pity, o tempora! o mores, more... Adjectives: social, sexual, cultural, traditional, american, local, contemporary, conventional, class, societal, current ▸ Word origin ▸ Words similar to mores ▸ Usage examples for mores ▸ Idioms related to mores ▸ Wikipedia articles (New!) ▸ Popular adjectives describing mores ▸ Words that often appear near mores ▸ Rhymes of mores ▸ Invented words related to mores