Also found in: Dictionary, Thesaurus, Encyclopedia.
Etymology: L, post, after; Gk, ganglion, knot, neuron, nerve
a neuron that is distal to or beyond a ganglion.
A neuron of the autonomic nervous system whose cell body lies in an autonomic ganglion and whose axon terminates in a visceral effector (smooth or cardiac muscle or glands).
See also: neuron