Main Entry: to·pec·to·my Pronunciation: t&-'pek-t&-mE Function: noun Inflected Form: plural-mies : surgicalexcision of selected portions of the frontal cortex of the brain for the relief of mental disorders
topectomy to·pec·to·my (tə-pěk'tə-mē) n. Surgical removal of specific areas of the frontal lobe of the cerebral cortex as a treatment for certain mental disorders. Also called corticectomy.