bullfrog

• bull frog, bull-frog

From bull +‎ frog.

• (UK) IPA^(key): /ˈbʊlfrɒɡ/
• Rhymes: -ɒɡ
• (US) IPA^(key): /ˈbʊlfɹɑɡ/, /ˈbʊlfɹɔɡ/
• Rhymes: -ɒɡ, -ɔːɡ

bullfrog (plural bullfrogs)

1. Any of various frogs having a croak that resembles the bellow of a cow or bull.
   • 1886 October – 1887 January, H[enry] Rider Haggard, She: A History of Adventure, London: Longmans, Green, and Co., published 1887, →OCLC:

     The bull-frogs were also very large, and with voices proportionate to their size[.]

A male bullfrog

• African bullfrog (Pyxicephalus adspersus)
• American bullfrog (Lithobates catesbeianus or Rana catesbeiana)
• east Asian bullfrog (Hoplobatrachus rugulosus)
• banded bullfrog (Kaloula pulchra)
• Calabresi's bullfrog (Pyxicephalus obbianus)
• crowned bullfrog (Hoplobatrachus occipitalis)
• edible bullfrog (Pyxicephalus edulis)
• giant bullfrog (Limnodynastes interioris)
• Indian bullfrog (Euphlyctis hexadactylus)
• Indus Valley bullfrog (Hoplobatrachus tigerinus)
• North American bullfrog (Lithobates catesbeianus)
• South American bullfrog (Leptodactylus)

• “bullfrog”, in OneLook Dictionary Search.