arborescent UK /ɑːbəˈɹɛsənt/US /ɑːɹbəˈɹɛsənt/ adjective2 •Like a tree; having a structure or appearance similar to that of a tree; branching.Hydatica. Stem arborescent, jointed, branched; leaves long, linear. — 1825 •Marked by insistence on totalizing principles, binarism and dualism (as opposed to the rhizome theory).Gilles Deleuze criticizes the Chomsky hierarchy of formal languages, which he considers a perfect example of arborescent dualistic theory. formsmore arborescent · most arborescent