pyramidotomy

py·ram·i·dot·o·my

(pi-ram'i-dot'ŏ-mē), Section of pyramidal tracts, in the spinal cord, for the relief of involuntary movements. [G. pyramis, pyramid, + tomē, incision]

pyramidotomy

(pĭ-răm-ĭ-dŏt′ō-mē) [Gr. pyramis, a pyramid, + tome, incision] Excision of the pyramidal tracts of the spinal cord in order to alleviate involuntary muscular movements.