neencephalon neencephalic • neep · · · Info · Definitions · Synonyms · Characters · · neencephalon · · Text Latin · · Script 12 · · Length 4 · · Syllables Definitions · · · (noun) the part of the brain having the most recent phylogenetic origin; the cerebral cortex and related parts. Synonyms: neoencephalon. · · Noun Definition 1 Synonyms · · · neoencephalon · · Synonym 1 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 h latin small letter h U+0068 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070