Pronunciation: (blak'härt"), [key]
1. Plant Pathol.a nonparasitic disease of plants, as of potatoes and various trees, in which internal plant tissues blacken, usually as a result of extremes in temperature.
a. a heart cherry having a dark skin.
b. the tree bearing this fruit.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.