We found 24 dictionaries that define the word cotton wool:

General (20 matching dictionaries)

1. cotton wool: Merriam-Webster
2. cotton wool: Oxford Learner's Dictionaries
3. cotton wool: American Heritage Dictionary of the English Language
4. cotton wool: Collins English Dictionary
5. cotton wool: Vocabulary.com
6. cotton-wool, cotton wool: Wordnik
7. cotton wool: Cambridge Advanced Learner's Dictionary
8. cotton-wool, cotton wool: Wiktionary
9. cotton wool: The Wordsmyth English Dictionary-Thesaurus
10. cotton wool: Infoplease Dictionary
11. Cotton wool, cotton-wool, cotton wool: Dictionary.com
12. Cotton Wool (song), Cotton Wool, Cotton wool: Wikipedia, the Free Encyclopedia
13. cotton wool: Rhymezone
14. Cotton Wool: Britih-American Dictionary
15. cotton wool: FreeDictionary.org
16. cotton wool: Mnemonic Dictionary
17. cotton wool: TheFreeDictionary.com
18. cotton wool: Longman Dictionary of Contemporary English

Computing (1 matching dictionary)

19. cotton wool: Encyclopedia

Slang (2 matching dictionaries)

20. cotton wool: Green’s Dictionary of Slang
21. Cotton Wool: Urban Dictionary

Tech (1 matching dictionary)

22. Book Binding (No longer online)

(Note: See cotton_wools as well.)

Definitions from Wiktionary (cotton wool) ▸ noun:  (US) Raw fibers of cotton before being processed. ▸ noun:  (UK) Soft, absorbent cotton for medical or cosmetic use, protective padding, etc. Similar: absorbent cotton, cotton, cotton-wool, cottonwool, bombase, floss silk, lint, woolsey, floss, cotton-picking, more... Phrases: Cotton wool spots, cotton wool ball, cotton wool patches, cotton wool spot, wrapping in cotton wool, more... Adjectives: cotton, dyed-in-the-wool, fly, loft, felt, dyed in the wool, velvet, cotton-picking, satin, wooly, woollen ▸ Words similar to cotton wool ▸ Usage examples for cotton wool ▸ Idioms related to cotton wool ▸ Wikipedia articles (New!) ▸ Words that often appear near cotton wool ▸ Rhymes of cotton wool ▸ Invented words related to cotton wool