from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A lobotomy in which the white fibers that connect the thalamus to the prefrontal and frontal lobes of the brain are severed, formerly performed to treat behavior that was considered to be abnormal.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun surgical interruption of nerve tracts to and from the frontal lobe of the brain; often results in marked cognitive and personality changes
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