The dorsolateral expansion of the telencephalon forming the non-olfactory portion of the cerebral hemisphere of the higher vertebrates, especially mammals.
Origin
Early 20th century. From neo- + pallium.
Definition of neopallium in US English:
neopallium
nounˌnɪə(ʊ)ˈpalɪəm
Anatomy
The dorsolateral expansion of the telencephalon forming the non-olfactory portion of the cerebral hemisphere of the higher vertebrates, especially mammals.