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We found 25 dictionaries with English definitions that include the word sympathetic nervous system:
Click on the first link on a line below to go directly to a page where "sympathetic nervous system" is defined.

General (14 matching dictionaries)

1. sympathetic nervous_system: Merriam-Webster.com [home, info]
2. sympathetic nervous_system: American Heritage Dictionary of the English Language [home, info]
3. sympathetic nervous_system: Vocabulary.com [home, info]
4. sympathetic nervous_system: Wiktionary [home, info]
5. sympathetic nervous_system: Dictionary.com [home, info]
6. sympathetic nervous_system: UltraLingua English Dictionary [home, info]
7. Sympathetic Nervous System, Sympathetic nervous system: Wikipedia, the Free Encyclopedia [home, info]
8. sympathetic nervous_system: Rhymezone [home, info]
9. Sympathetic Nervous System: 1911 edition of the Encyclopedia Britannica [home, info]
10. sympathetic nervous_system: Free Dictionary [home, info]
11. sympathetic nervous_system: Mnemonic Dictionary [home, info]
12. sympathetic nervous_system: WordNet 1.7 Vocabulary Helper [home, info]
13. sympathetic nervous_system: LookWAYup Translating Dictionary/Thesaurus [home, info]
14. sympathetic nervous_system: Dictionary/thesaurus [home, info]

Business (1 matching dictionary)

15. sympathetic nervous_system: Legal dictionary [home, info]

Computing (1 matching dictionary)

16. sympathetic nervous_system: Encyclopedia [home, info]

Medicine (9 matching dictionaries)

17. Nervous system, sympathetic, Sympathetic nervous system, System, sympathetic nervous: MedTerms.com Medical Dictionary [home, info]
18. Sympathetic Nervous System: Medical Dictionary [home, info]
19. sympathetic nervous_system, nervous system, sympathetic, system, sympathetic nervous: online medical dictionary [home, info]
20. sympathetic nervous_system: Multiple Sclerosis Encyclopaedia [home, info]
21. sympathetic nervous_system: Neurotrauma Glossary [home, info]
22. sympathetic nervous_system: Dictionary of Cancer Terms [home, info]
23. sympathetic nervous_system: Medical dictionary [home, info]
24. Sympathetic nervous system: WeMove Glossary of Terms [home, info]
25. Nervous system, sympathetic, Sympathetic nervous system, System, sympathetic nervous: Drug Medical Dictionary [home, info]

Quick definitions from WordNet (sympathetic nervous system) ▸ noun:  originates in the thoracic regions of the spinal cord; opposes physiological effects of the parasympathetic: reduces digestive secretions; speeds the heart; contracts blood vessels ▸ Words similar to sympathetic nervous system ▸ Usage examples for sympathetic nervous system ▸ Words that often appear near sympathetic nervous system ▸ Rhymes of sympathetic nervous system ▸ Invented words related to sympathetic nervous system