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.
[Monuments] adorned with rostral crowns and naval ornaments.
Addison.
© Webster 1913.