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bullfrog

[ bool-frog, -frawg ]
/ ˈbʊlˌfrɒg, -ˌfrɔg /
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noun

a large frog, especially the North American Rana catesbeiana, having a deep voice.

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Origin of bullfrog

1690–1700, Americanism;bull1 + frog1; so called from its size and voice
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for bullfrog

bullfrog
/ (ˈbʊlˌfrɒɡ) /

noun

any of various large frogs, such as Rana catesbeiana (American bullfrog), having a loud deep croak
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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