bullfrog

• bull frog, bull-frog

From bull +‎ frog.

• (UK) IPA^(key): /ˈbʊlfɹɒɡ/

• Audio (Southern England):

  (file)

• Rhymes: -ɒɡ
• (US) IPA^(key): /ˈbʊlfɹɑɡ/, /ˈbʊlfɹɔɡ/
• Rhymes: -ʊlfɹɒɡ, -ʊlfɹɔːɡ

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[.]

• “bullfrog”, in OneLook Dictionary Search.