bird cherry

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Any of several cherry trees, especially the Eurasian Prunus padus, having clusters of white flowers and small black bitter fruits.
• noun The fruit of any of these trees.

from The Century Dictionary.

• noun See cherry, 1.

from the GNU version of the Collaborative International Dictionary of English.

• (Bot.) A shrub (Prunus Padus ) found in Northern and Central Europe. It bears small black cherries.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A cherry tree, Prunus padus native to the northern Eurasia.
• noun A berry (fruit) produced by this tree.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun any of several small-fruited cherry trees frequented or fed on by birds