1) Neoencephalon 2) Neural structure 1) Neoencephalon 
evolutionarily newer part of the vertebrate brain
Edinger's term for the higher levels of the central nervous system superimposed upon the metameric or propriospinal system (paleencephalon). ... Synonym: neoencephalon. ... Origin: G. Neos, new, + enkephalos, brain ... (05 Mar 2000) ... 
Type: Term Pronunciation: nē′en-sef′ă-lon Definitions: 1. L. Edinger's term for the higher levels of the central nervous system superimposed on the metameric or propriospinal system (paleencephalon). Synonyms: neoencephalon
[n] - the part of the brain having the most recent phylogenetic origin
neoencephalon noun the part of the brain having the most recent phylogenetic origin; the cerebral cortex and related parts
the more recent part of the brain in the evolutionary development of animals, including the cerebral cortex and its related structures.
the part of the brain having the most recent phylogenetic origin; the cerebral cortex and related parts