Parasympathetic meaning

What does “parasympathetic” mean? Definitions, examples, synonyms and opposites.

“parasympathetic” is a noun and adjective with 2 meanings. Its most common meaning is: 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.