1. the part of the brain having the most recent phylogenetic origin; the cerebral cortex and related parts; [syn: neencephalon, neoencephalon]
WordNet (r) 3.0 (2006):
neoencephalon
n 1: the part of the brain having the most recent phylogenetic
origin; the cerebral cortex and related parts [syn:
neencephalon, neoencephalon]