Definition from Wiktionary, the free dictionary
callosumectomy (plural callosumectomies)
- (rare) The surgical removal of the corpus callosum; splitting the brain into two halves.
1998, Rosemary Strasser, The avian hippocampal formation and spatial cognition:
- which allows a researcher to examine lateralization in many bird species without any surgical manipulations such as callosumectomy in mammalian systems.
More often referred to as a (total) section of the corpus callosum.