Surgery. a psychosurgical procedure in which the frontal lobes are separated from the rest of the brain by cutting the connecting nerve fibers.
- prefrontal area,
- preganglionic motor neuron,
Origin of prefrontal lobotomy
First recorded in 1935–40
Also called frontal lobotomy, lobotomy.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
A lobotomy in which the white fibers that connect the thalamus to the prefrontal and frontal lobes of the brain are severed, performed as a treatment for intense anxiety or violent behavior.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.