neocerebellum
/ˌniːə(ʊ)sɛrɪˈbɛləm/Anatomy
noun
The part of the cerebellum considered to be of most recent phylogenetic origin, consisting mainly of the lateral portions of its middle lobes.
Origin
1920s; earliest use found in The Lancet. From neo- + cerebellum, after German Neocerebellum, Neozerebellum.