trident bat

from The Collaborative International Dictionary of English v.0.48
Trident \Tri"dent\ (tr[imac]"dent), n. [L. tridens, -entis; tri-
   (see {Tri-}) + dens tooth: cf. F. trident. See {Tooth}.]
   1. (Class Myth.) A kind of scepter or spear with three
      prongs, -- the common attribute of Neptune.
      [1913 Webster]

   2. (Rom. Antiq.) A three-pronged spear or goad, used for
      urging horses; also, the weapon used by one class of
      gladiators.
      [1913 Webster]

   3. A three-pronged fish spear.
      [1913 Webster]

   4. (Geom.) A curve of third order, having three infinite
      branches in one direction and a fourth infinite branch in
      the opposite direction.
      [1913 Webster]

   {Trident bat} (Zool.), an Asiatic rhinolophid bat ({Triaenops
      Persicus}), having the nose membrane in the shape of a
      trident.
      [1913 Webster]
    

[email protected]