acallosal

adjective
acal·​lo·​sal | \ ˌā-kə-ˈlō-səl, -ka- \

Medical Definition of acallosal

: lacking a corpus callosum the acallosal brain … the observation that acallosal children and adults are very clumsy in tasks that require bi-manual cooperation.— John Stirling, Introducing Neuropsychology, 2002

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