The Collaborative International Dictionary of English v.0.48:
Erithacus \Erithacus\ n. a genus of songbirds, consisting of certain of the Old World thrushes. Syn: genus Erithacus. [WordNet 1.5]WordNet (r) 3.0 (2006):
Erithacus n 1: Old World thrushes [syn: Erithacus, genus Erithacus]