Source : Webster's Revised Unabridged Dictionary (1913)

Dentirostral \Den`ti*ros"tral\, a. (Zo["o]l.)
   Having a toothed bill; -- applied to a group of passerine
   birds, having the bill notched, and feeding chiefly on
   insects, as the shrikes and vireos. See Illust. (N) under
   {Beak}.