bullfrog Meaning, Definition & Usage

  1. noun largest North American frog; highly aquatic with a deep-pitched voice
    Rana catesbeiana.

WordNet


Bull"frog` noun
Definitions
  1. (Zoöl.) A very large species of frog (Rana Catesbiana), found in North America; -- so named from its loud bellowing in spring.

Webster 1913