n. (pl. cingula) 1. a curved bundle of nerve fibres in each cerebral hemisphere, nearly encircling its connection with the corpus callosum. See cerebrum. 2. a small protuberance on the lingual surface of the crowns of incisor and canine teeth.
n. surgical excision of the *cingulum, the part of the brain concerned with anger and depression. The procedure has occasionally been carried out as *psychosurgery for intractable mental illness, usually bilaterally. It is very rare in current psychiatric treatment.... cingulectomy
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