paleocerebellum

noun
pa·leo·cer·e·bel·lum | \-ˈbel-əm \
variants: or British palaeocerebellum \ˌpal-ē- \
plural paleocerebellums or paleocerebella\-ˈbel-ə \

Medical Definition of paleocerebellum 

: a phylogenetically old part of the cerebellum concerned with maintenance of normal postural relationships and made up chiefly of the anterior lobe of the vermis and of the pyramid — compare neocerebellum

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