serviceberry

noun, plural serv·ice·ber·ries.

1. the fruit of any service tree.
2. a North American shrub or small tree, Amelanchier canadensis, of the rose family, having serrate, oblong leaves, clusters of white flowers,and a berrylike fruit.
3. any of various other plants of the genus Amelanchier.

noun plural -ries

1. Also called: shadbush any of various North American rosaceous trees or shrubs of the genus Amelanchier, esp A. canadensis, which has white flowers and edible purplish berries
2. the fruit of any of these plants
3. the fruit of the service tree