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firemouth

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Definition of firemouth

: a small cichlid fish (Cichlasoma meeki) that is fiery red along the belly and mouth with a metallic green blotch on the gill cover and that is often kept in tropical aquariums

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“Firemouth.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/firemouth. Accessed 2 Mar. 2021.

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