loxotomy
/ˈlɒksɒtəmi/Definitions
1. noun
A surgical operation in which the corpus callosum, the bundle of nerve fibers connecting the two hemispheres of the brain, is severed or cut.
“The patient underwent a loxotomy to treat severe epilepsy.”
2. noun
A procedure in which the corpus callosum is partially or completely severed, often to treat conditions such as severe epilepsy.