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1. (adj.) parasympathetic
pertaining to that part of the autonomic nervous system consisting of nerves and ganglia that arise from the cranial and sacral regions and generally function in regulatory opposition to the sympathetic system, as in slowing heartbeat or contracting the pupil of the eye.
Etymology: (1900–05)
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| Definition of 'parasympathetic' |
Princeton's WordNet |
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1. (adj) parasympathetic nervous system, parasympathetic
originates in the brain stem and lower part of the spinal cord; opposes physiological effects of the sympathetic nervous system: stimulates digestive secretions; slows the heart; constricts the pupils; dilates blood vessels
2. (adj) parasympathetic
of or relating to the parasympathetic nervous system
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Definitions of parasympathetic 
