noun, plural young·ber·ries. Horticulture.
a blackberry that is a cultivated variety of Rubus ursinus of the southwestern U.S.
Origin of youngberry
1930–35; named after B. M. Young, U.S. hybridizer, who developed it c1900
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
noun plural -ries
a trailing bramble of the southwestern US that is a hybrid of a blackberry and dewberry with large sweet dark purple fruits
the fruit of this plant
Word Origin for youngberry
C20: named after B. M. Young, US fruit-grower who was first to cultivate it (circa 1900)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012