We found 20 dictionaries that define the word mules:

General (12 matching dictionaries)

1. mules: Merriam-Webster
2. Mules: Oxford Learner's Dictionaries
3. mules: Collins English Dictionary
4. mules: Vocabulary.com
5. Mule's, Mules, mule's, mules: Wordnik
6. mules: Cambridge Advanced Learner's Dictionary
7. Mules, mules: Wiktionary
8. mules: Dictionary.com
9. mules: Cambridge Essential American English Dictionary
10. Mules: Wikipedia, the Free Encyclopedia
11. mules: Rhymezone
12. mules: TheFreeDictionary.com

Computing (1 matching dictionary)

13. mules: Encyclopedia

Medicine (3 matching dictionaries)

14. Mules: Merriam-Webster Medical Dictionary
15. mules: Medical dictionary
16. Rudy's List of Archaic Medical Terms (No longer online)

Miscellaneous (2 matching dictionaries)

17. mules: Idioms
18. MULES: Acronym Finder

Science (1 matching dictionary)

19. Agricultural Thesaurus and Glossary (No longer online)

Slang (1 matching dictionary)

20. mules: Urban Dictionary

(Note: See mule as well.)

Definitions from Wiktionary (mules) ▸ verb:  (transitive) To remove skin from (an animal) to prevent myiasis. Similar: scuff, mucker, milt, mire, mummy, mank, muck, molt, murinise, maul, more... Types: hinny, molly, jenny, more... Phrases: spinning mules, mules ears, white rayed mules ears, mules operation, 2000 Mules, more... Adjectives: many, few, several, laden, good, white, dead, little, big, old, poor ▸ Words similar to mules ▸ Usage examples for mules ▸ Idioms related to mules ▸ Wikipedia articles (New!) ▸ Words that often appear near mules ▸ Rhymes of mules ▸ Invented words related to mules