immunosympathectomy

Inhibition of development of sympathetic ganglia induced in newborn animals by injection of antiserum specific for the protein which selectively enhances growth of sympathetic neurons.

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im·mu·no·sym·pa·thec·to·my -.sim-pə-'thek-tə-mē n, pl -mies the destruction of neurons of the sympathetic nervous system in newborn laboratory animals (as mice or rats) by the injection of antiserum to nerve growth factor

im·mu·no·sym·pa·thec·to·mized or chiefly Brit im·mu·no·sym·pa·thec·to·mised -.mīzd adj