The Collaborative International Dictionary of English v.0.48:
Rostrate \Ros"trate\, Rostrated \Ros"tra*ted\, a. [L. rostratus, fr. rostrum a beak. See Rostrum.] 1. Having a process resembling the beak of a bird; beaked; rostellate. [1913 Webster] 2. Furnished or adorned with beaks; as, rostrated galleys. [1913 Webster]WordNet (r) 3.0 (2006):
rostrate adj 1: having a beak or beaklike snout or proboscis