We found 21 dictionaries that define the word nits:

General (11 matching dictionaries)

1. nits: Merriam-Webster
2. nits: Collins English Dictionary
3. nits: Vocabulary.com
4. Nits, nits: Wordnik
5. nits: Cambridge Advanced Learner's Dictionary
6. nits: Wiktionary
7. nits: Dictionary.com
8. nits: Cambridge Essential American English Dictionary
9. Nits (band), Nits, The Nits: Wikipedia, the Free Encyclopedia
10. NITS: Stammtisch Beau Fleuve Acronyms
11. Nits: TheFreeDictionary.com

Computing (1 matching dictionary)

12. Nits: Encyclopedia

Medicine (6 matching dictionaries)

13. nits: Merriam-Webster Medical Dictionary
14. Nits: Merck Manuals
15. KidsHealth Glossary of Medical Words (No longer online)
16. A-Z Family health glossary (No longer online)
17. Nits: Medical dictionary
18. University of Maryland Glossary of Medical Terms (No longer online)

Miscellaneous (1 matching dictionary)

19. NITS: Acronym Finder

Slang (2 matching dictionaries)

20. Nits: Dublin Slang and Phrasebook
21. NITS: Urban Dictionary

(Note: See nit as well.)

Definitions from Wikipedia (Nits) ▸ noun:  (known until 1989 as The Nits) a Dutch pop group founded in 1974. Phrases: picking nits, nits and lice, picked nits, picks nits, pick nits, more... Adjectives: white, dead, more, few, numerous, small, little, oval, live, black, tiny ▸ Words similar to nits ▸ Usage examples for nits ▸ Idioms related to nits ▸ Wikipedia articles (New!) ▸ Popular adjectives describing nits ▸ Words that often appear near nits ▸ Rhymes of nits ▸ Invented words related to nits