frog lily

Frog \Frog\ (fr[o^]g), n. [AS. froggu, frocga a frog (in
   sensel); akin to D. vorsch, OHG. frosk, G. frosch, Icel.
   froskr, fraukr, Sw. & Dan. fr["o].]
   1. (Zool.) An amphibious animal of the genus {Rana} and
      related genera, of many species. Frogs swim rapidly, and
      take long leaps on land. Many of the species utter loud
      notes in the springtime.
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   Note: The edible frog of Europe ({Rana esculenta}) is
         extensively used as food; the American bullfrog ({R.
         Catesbiana}) is remarkable for its great size and loud
         voice.
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   2. [Perh. akin to E. fork, cf. frush frog of a horse.]
      (Anat.) The triangular prominence of the hoof, in the
      middle of the sole of the foot of the horse, and other
      animals; the fourchette.
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   3. (Railroads) A supporting plate having raised ribs that
      form continuations of the rails, to guide the wheels where
      one track branches from another or crosses it.
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   4. [Cf. fraco of wool or silk, L. floccus, E. frock.] An
      oblong cloak button, covered with netted thread, and
      fastening into a loop instead of a button hole.
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   5. The loop of the scabbard of a bayonet or sword.
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   {Cross frog} (Railroads), a frog adapted for tracks that
      cross at right angles.

   {Frog cheese}, a popular name for a large puffball.

   {Frog eater}, one who eats frogs; -- a term of contempt
      applied to a Frenchman by the vulgar class of English.

   {Frog fly}. (Zool.) See {Frog} hopper.

   {Frog hopper} (Zool.), a small, leaping, hemipterous insect
      living on plants. The larv[ae] are inclosed in a frothy
      liquid called {cuckoo spit} or {frog spit}.

   {Frog lily} (Bot.), the yellow water lily ({Nuphar}).

   {Frog spit} (Zool.), the frothy exudation of the {frog
      hopper}; -- called also {frog spittle}. See {Cuckoo spit},
      under {Cuckoo}.
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