botany UK /ˈbɒt.ə.ni/US /ˈbɑ.tə.ni/ noun4 •A branch of biology concerned with the scientific study of plants. •The plant life of a geographical area; flora. •A botanical treatise or study, especially of a particular system of botany or that of a particular place. •The properties and life phenomena exhibited by a plant, plant type, or plant group. formsbotanies