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pa·leo·pal·li·um
variants:
or British palaeopallium \ -ˈpal-ē-əm 
\
\ plural paleopallia\ -ē-ə \ or paleopalliums
\ or paleopalliumsMedical Definition of paleopallium
: a phylogenetically old part of the cerebral cortex that develops along the lateral aspect of the hemispheres and gives rise to the olfactory lobes in higher forms
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