rhinoceros bird

Rhinoceros \Rhi*noc"e*ros\ (r[-i]*n[o^]s"[-e]*r[o^]s), n. [L.,
   fr. Gr. "rinoke`rws, "rinoke`rwtos; "ri`s, "rino`s, the nose
   + ke`ras a horn: cf. F. rhinoc['e]ros. See {Horn}.] (Zool.)
   Any pachyderm belonging to the genera {Rhinoceros},
   {Atelodus}, and several allied genera of the family
   {Rhinocerotidae}, of which several living, and many extinct,
   species are known. They are large and powerful, and usually
   have either one or two stout conical median horns on the
   snout.
   [1913 Webster]

   Note: The Indian, or white, and the Javan rhinoceroses
         ({Rhinoceros Indicus} and {Rhinoceros Sondaicus}) have
         incisor and canine teeth, but only one horn, and the
         very thick skin forms shieldlike folds. The two or
         three African species belong to {Atelodus}, and have
         two horns, but lack the dermal folds, and the incisor
         and canine teeth. The two Malay, or East Indian,
         two-horned species belong to {Ceratohinus}, in which
         incisor and canine teeth are present. See {Borele}, and
         {Keitloa}.
         [1913 Webster]

   {Rhinoceros auk} (Zool.), an auk of the North Pacific
      ({Cerorhina monocrata}) which has a deciduous horn on top
      of the bill.

   {Rhinoceros beetle} (Zool.), a very large beetle of the genus
      {Dynastes}, having a horn on the head.

   {Rhinoceros bird}. (Zool.)
   (a) A large hornbill ({Buceros rhinoceros}), native of the
       East Indies. It has a large hollow hornlike process on
       the bill. Called also {rhinoceros hornbill}. See
       {Hornbill}.
   (b) An African beefeater ({Buphaga Africana}). It alights on
       the back of the rhinoceros in search of parasitic
       insects.
       [1913 Webster]