n.
Pronunciation: ' bo ̇ i-z ə n- ˌ ber- ē , -be-r ē , -s ə n-, -z ə m-
Function: noun
Etymology: Rudolph Boysen † 1950 American horticulturist + English berry
Date: 1935
: a large reddish black fruit with a raspberry flavor also : the trailing hybrid bramble yielding this fruit and developed by crossing several blackberries and raspberries