D defs.my
Entry 1 sense Webster, 1913

neencephalon

/(nē`ĕn*sĕf"ȧ*lŏn)/ · ne·en·ceph·a·lon · IPA
01 The most recently evolved part of the brain of higher animals. It includes the cerebral cortex and related structures.
  1. 1.
    The most recently evolved part of the brain of higher animals. It includes the cerebral cortex and related structures.(Anat.)