n. [ OE. blakberye, AS. blæcberie; blæc black + berie berry. ] The fruit of several species of bramble (Rubus); also, the plant itself. Rubus fruticosus is the blackberry of England; Rubus villosus and Rubus Canadensis are the high blackberry and low blackberry of the United States. There are also other kinds. [ 1913 Webster ]