The Collaborative International Dictionary of English v.0.48:
Amelanchier \Amelanchier\ n. 1. 1 a genus of North American deciduous trees or shrubs. Syn: genus Amelanchier. [WordNet 1.5]WordNet (r) 3.0 (2006):
Amelanchier n 1: North American deciduous trees or shrubs [syn: Amelanchier, genus Amelanchier]