The Collaborative International Dictionary of English v.0.48:

Latirostral \Lat`i*ros"tral\, Latirostrous \Lat`i*ros"trous\, a.
   [Cf. F. latirostre. See Latirostres.] (Zool.)
   Having a broad beak. --Sir T. Browne.
   [1913 Webster]