noun, plural sym·pa·thec·to·mies. Medicine/Medical.
- surgery that interrupts a nerve pathway of the sympathetic or involuntary nervous system.
- Also called chemical sympathectomy. a like interruption by chemical means.
noun plural -mies
- the surgical excision or chemical destruction (chemical sympathectomy) of one or more parts of the sympathetic nervous system
- Surgical removal of a part of the sympathetic nervous system.