We found 18 dictionaries that define the word sleep disorders:

General (5 matching dictionaries)

1. sleep disorders: Vocabulary.com
2. sleep-disorders: Wordnik
3. sleep disorders: Wiktionary
4. Sleep disorders: Wikipedia, the Free Encyclopedia
5. Sleep disorders: TheFreeDictionary.com

Business (1 matching dictionary)

6. Sleep disorders: Legal dictionary

Computing (1 matching dictionary)

7. Sleep disorders: Encyclopedia

Medicine (11 matching dictionaries)

8. Dorland's Illustrated Medical Dictionary (No longer online)
9. Sleep disorders: MedTerms.com Medical Dictionary
10. Medical Dictionary (No longer online)
11. Johnson Bwby (No longer online)
12. online medical dictionary (No longer online)
13. Specific Diseases/Disorders (No longer online)
14. Sleep disorders: MEDLINE plus Illustrated Medical Encyclopedia
15. Sleep Terms (No longer online)
16. Sleep disorders: Medical dictionary
17. University of Maryland Glossary of Medical Terms (No longer online)
18. Sleep disorders: Drug Medical Dictionary

(Note: See sleep_disorder as well.)

Definitions from Wiktionary (sleep disorder) ▸ noun:  (pathology) A medical disorder of the sleep patterns of a person or animal. ▸ Also see sleep_disorder Phrases: circadian rhythm sleep disorders, International Classification of Sleep Disorders, more... ▸ Words similar to sleep disorders ▸ Usage examples for sleep disorders ▸ Idioms related to sleep disorders ▸ Wikipedia articles (New!) ▸ Words that often appear near sleep disorders ▸ Rhymes of sleep disorders ▸ Invented words related to sleep disorders