The Collaborative International Dictionary of English v.0.48:

Batrachomyomachy \Bat`ra*cho*my*om"a*chy\, n. [Gr.
   batrachomyomachi`a; ba`trachos frog + my^s mouse + ma`chh
   battle.]
   The battle between the frogs and mice; -- a Greek parody on
   the Iliad, of uncertain authorship.
   [1913 Webster]