noun
: a common arborescent European buckthorn ( Rhamnus cathartica ) that is widely naturalized in the eastern United States and has purgative black berries and bark
noun
: a common arborescent European buckthorn ( Rhamnus cathartica ) that is widely naturalized in the eastern United States and has purgative black berries and bark
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012