|anatomy, physiol Compare sympathetic 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, etc|
|the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).|
|a white, crystalline, water-insoluble, powerful high explosive, C3H6N6O6, used chiefly in bombs and shells.|
parasympathetic par·a·sym·pa·thet·ic (pār'ə-sĭm'pə-thět'ĭk)
Of, relating to, or affecting the parasympathetic nervous system.