Definition of pupfish
: any of several killifishes (genus Cyprinodon of the family Cyprinodontidae) especially of warm streams and springs of the western U.S.
Recent Examples of pupfish from the Web
No one plans on throwing Ash Meadows Amargosa pupfish into Devils Hole anytime soon, so the species’ genetic legacy remains intact for now.
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First Known Use of pupfish
Learn More about pupfish
Britannica.com: Encyclopedia article about pupfish
Seen and Heard
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