In pumps. Flexible impeller of cooling system pump of an outboard engine. An impeller is a rotating component of a centrifugal pump, usually made of iron, steel, bronze, brass, aluminium or plastic, which transfers energy from the motor that drives the pump to the fluid being pumped by accelerating the fluid outwards from the center of rotation.
noun, plural: dorsal root ganglia. (neuroanatomy) The ganglion on the dorsal root of every spinal nerve. It is where the cell bodies of sensory neurons are located; hence, it is chiefly involved in the transmission of sensory information.
Dorsal Nerve Root. Sections. A dorsal nerve root â also known as a posterior nerve root â is a main bundle of nerve fibers that branches off the spinal cord and goes to other areas of the body.Dorsal nerve roots are responsible for carrying signals of sensation (such as feelings of pain and temperature) from the body to the brain.orsal Nerve Root. Sections. A dorsal nerve root â also known as a posterior nerve root â is a main bundle of nerve fibers that branches off the spinal cord and goes to other areas of the body.