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.
a dermatome on one side of the body; it takes two dorsal root ganglia (right and left) at one segmental level to supply both sides of the body. a sensory ganglion; located on the dorsal root - one per spinal nerve; location of the cell bodies of somatic afferent (sensory) neurons. ventral primary ramus. first branch off of the ventral side of the spinal nerve.