myelotomy
noun
my·e·lot·o·my
| \ ˌmī-ə-ˈlät-ə-mē
\
\
plural myelotomies
Medical Definition of myelotomy
: surgical incision of the spinal cord
especially
: section of crossing nerve fibers at the midline of the spinal cord and especially of sensory fibers for the relief of intractable pain