Real Dictionary

cotoneaster in American English
any of a genus (Cotoneaster) of shrubs of the rose family, grown for their attractive leaves, red or white flowers, and small, red or black fruits
noun: any of various shrubs or small trees belonging to the genus Cotoneaster, of the rose family, having white or pink flowers and bearing a red or black, berrylike fruit, grown as an ornamental

cotoneaster in British English
noun: any Old World shrub of the rosaceous genus Cotoneaster: cultivated for their small ornamental white or pinkish flowers and red or black berries