Retrograde degeneration of an injured nerve fibre; i.e., toward the nerve cell of the fibre, degeneration cephalad to a spinal cord lesion. ... (05 Mar 2000) ... 
wallerian degeneration of centripetal nerve fibers that progresses toward the brain or spinal cord.
Type: Term Definitions: 1. retrograde degeneration of an injured nerve fiber; toward the nerve cell of the fiber; 2. spinal cord degeneration that begins in one region and then progresses cephalad.