phyllotaxisPronunciation: /ˌfɪlə(ʊ)ˈtaksɪs/ (also phyllotaxy /-ˈtaksi/)Definition of phyllotaxis noun [mass noun] Botany the arrangement of leaves on an axis or stem. Derivatives phyllotactic adjective phyllotaxis in other Oxford dictionaries Definition of phyllotaxis in the US English dictionary
