nerve endings definition
Noun. 1. nerve ending-the terminal structure of an axon that does not end at a synapse. nerve end. axon, axone-long nerve fiber that conducts away from the cell body of the neuron. free nerve ending-microscopic sensory nerve endings in the skin that are not connected to any specific sensory receptor. Pacinian corpuscle-a specialized bulblike nerve ending located in the subcutaneous tissue of the skin; occurs abundantly in the skin of palms and soles and joints and genitals.