posterior root is a noun meaning "one of two roots of a spinal nerve that passes dorsally from the spinal cord and that consists of sensory fibers". It carries one recorded sense.
one of two roots of a spinal nerve that passes dorsally from the spinal cord and that consists of sensory fibers
Definitions, synonyms and semantic relations for posterior root come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.