The Collaborative International Dictionary of English v.0.48:

Leptodactylidae \Leptodactylidae\ n. [See leptodactyl.]
   A natural family of New World frogs; in some classifications
   it is essentially coextensive with the family Bufonidae.

   Syn: family Leptodactylidae.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Leptodactylidae
    n 1: New World frogs; in some classifications essentially
         coextensive with the family Bufonidae [syn:
         Leptodactylidae, family Leptodactylidae]