D defs.my
Entry 1 sense Webster, 1913

Bullfrog

/bo͝ol'-frôgˌ/ · Bull·frog · IPA /ˈbʊlfɹɑɡ/
01 n. A very large species of frog (Rana Catesbiana), found in North America; -- so named from its loud bellowing in spring.
  1. 1.
    A very large species of frog (Rana Catesbiana), found in North America; -- so named from its loud bellowing in spring.(Zool.)