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destruction of the brain and spinal cord by thrusting a blunt needle into the vertebral canal and cranium, done on animals to destroy sensibility preparatory to experimenting on their living tissue.
pithing(pith'ing) [ME. pithe]
Destruction of the central nervous system by the piercing of brain or spinal cord, as in vivisection. This is done on experimental animals to render them insensible to pain and to inhibit controlling effects of the central nervous system during research and experimentation.See: decerebration