noun.
A usually prickly shrub that is a hybrid of a western North American blackberry (Rubus ursinus) and is cultivated for its edible, dark red to nearly black fruit.
noun.
The fruit of this plant.
the GNU version of the Collaborative International Dictionary of English
noun.
a cultivated hybrid bramble of California having large dark wine-red fruit with a raspberrylike flavor.
noun.
a large raspberry-flavored bramble fruit; a cross between blackberries and raspberries.