| Noun | 1. American dewberry - of eastern North America Northern dewberry, Rubus flagellarisdewberry - blackberry-like fruits of any of several trailing blackberry bushesdewberry, dewberry bush, running blackberry - any of several trailing blackberry brambles especially of North America | | 2.American dewberry - North American dewberry Rubus canadensisdewberry, dewberry bush, running blackberry - any of several trailing blackberry brambles especially of North America |