a shrub or small tree, Frangula alnus, of Eurasia and northern Africa, having nonedible red fruit that turns black when ripe.
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Origin of alder buckthorn
First recorded in 1860–65
Words nearby alder buckthorn
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for alder buckthorn
a Eurasian rhamnaceous shrub, Frangula alnus, with small greenish flowers and black berry-like fruits
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