Main Entry: neo·stri·a·tum Pronunciation: "nE-O-(")strI-'At-&m Function: noun Inflected Form: pluralneo·stri·a·tumsorneo·stri·a·ta/-&/ : the phylogenetically newer part of the corpus striatum consisting ofthe caudate nucleus and putamen —neo·stri·a·tal/-'At-&l/adjective