[no obj.][usu. as adj. perennating](Botany)(of a plant or part of a plant) live through a number of years, usually with an annual quiescent period (植)(植物或植物的一部分)全年生长;多年生长
派生 perennation noun 语源
early 17th cent.: from Latin perennat- 'continued for many years' (from the verb perennare) + -ate