| lobotomy | 1. Incision into a lobe. 2. Division of one or more nerve tracts in a lobe of the cerebrum. Origin: G. Lobos, lobe, + tome, a cutting (05 Mar 2000) |
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| prefrontal lobotomy | Division of one or more nerve tracts in the prefrontal area of the brain for surgical treatment of pain and emotional disorder. Synonym: prefrontal leukotomy. (05 Mar 2000) |
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| transorbital lobotomy | Lobotomy by an approach through the roof of the orbit, behind the frontal sinus. Synonym: transorbital leukotomy. (05 Mar 2000) |