- pertaining to that part of the autonomic nervous system consisting of nerves and ganglia that arise from the cranial and sacral regions and function in opposition to the sympathetic system, as in inhibiting heartbeat or contracting the pupil of the eye.
Origin of parasympathetic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for parasympathetic
It activates your parasympathetic nervous system and tells your body to relax and recuperate.How to Master the Art of Breathing
April 14, 2014
- anatomy physiol of or relating to the division of the autonomic nervous system that acts in opposition to the sympathetic system by slowing the heartbeat, constricting the bronchi of the lungs, stimulating the smooth muscles of the digestive tract, etcCompare sympathetic (def. 4)
Word Origin and History for parasympathetic
Online Etymology Dictionary, © 2010 Douglas Harper
- Of, relating to, or affecting the parasympathetic nervous system.