The Collaborative International Dictionary of English v.0.48:
Acrocephalus \Acrocephalus\ n. 1. 1 a genus of birds. Syn: genus Acrocephalus. [WordNet 1.5]WordNet (r) 3.0 (2006):
Acrocephalus n 1: a genus of Sylviidae [syn: Acrocephalus, genus Acrocephalus]