'Rostral' definitions:

Definition of 'Rostral'

From: GCIDE

Rostral \Ros"tral\, a. [L. rostralis, fr. rostrum a beak; cf. F. rostral.] Of or pertaining to the beak or snout of an animal, or the beak of a ship; resembling a rostrum, esp., the rostra at Rome, or their decorations. [1913 Webster]
[Monuments] adorned with rostral crowns and naval ornaments. --Addison. [1913 Webster] Rostrate