motor root

noun

See under nerve root.

Origin of motor root

First recorded in 1830–40

Words nearby motor root

motor nuclei, motor paralysis, motor park, motor plate, motor pool, motor root, motor sailer, motor scooter, motor speech center, motor torpedo boat, motor truck

Definition for motor root (2 of 2)

nerve root

noun Anatomy.

a nerve fiber bundle that emerges from either side of the spinal cord and joins with a complementary bundle to form each spinal nerve in the series of spinal nerves: the root at the rear of the spinal cord (dorsal root or sensory root) conveys sensations to the central nervous system, and the root at the front (ventral root or motor root) conveys impulses to the muscles.

Origin of nerve root

First recorded in 1875–80