1. one of the two roots of a spinal nerve that passes dorsally to the spinal cord and that consists of sensory fibers; [syn: dorsal root, dorsal horn]
WordNet (r) 3.0 (2006):
dorsal root
n 1: one of the two roots of a spinal nerve that passes dorsally
to the spinal cord and that consists of sensory fibers
[syn: dorsal root, dorsal horn]