from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The more posterior of the two nerve fiber bundles of a spinal nerve that carries sensory information to the central nervous system.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. one of the two roots of a spinal nerve that passes dorsally to the spinal cord and that consists of sensory fibers
Sorry, no etymologies found.
Every segment of the vertebral column has two big nerves sprouting from the spinal cord on either side, called the dorsal root and the ventral root.