Noun
- 1. parasympathetic nervous system, parasympathetic, nervous system, systema nervosum
- usage: 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
Adjective
- 1. parasympathetic
- usage: of or relating to the parasympathetic nervous system
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