Meaning of topectomy

to•pec•to•my

Pronunciation: (tu-pek'tu-mē), [key]
— pl. -mies.
  1. excision of part of the cerebral cortex for the relief of unmanageable pain or esp. as a treatment for certain mental disorders.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.