\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.