follow Dictionary.com

Your favorite word could be our Word of the Day!

motor root

noun
1.
See under nerve root.
Origin
1830-1840
1830-40

nerve root

noun, Anatomy
1.
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
1875-80
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
Examples from the web for motor root
  • Motor weakness results when the viral activity extends beyond the sensory root to involve the motor root.

Word of the Day

Difficulty index for motor root

Few English speakers likely know this word

Word Value for motor

7
8
Scrabble Words With Friends