pup·​fish ˈpəp-ˌfish How to pronounce pupfish (audio)
: any of several killifishes (genus Cyprinodon of the family Cyprinodontidae) especially of warm streams and springs of the western U.S.

Example Sentences

Recent Examples on the Web Berkeley fish lab recently sequenced the genome of Devils Hole pupfish and found some unique mutations, including one affecting the tail of the sperm. Holly Secon, Discover Magazine, 11 May 2022 In March, officials recorded 175 of the Devils Hole pupfish — up from 35 about a decade ago — and Wilson said the fall count is planned for this weekend. Grace Toohey, Los Angeles Times, 22 Sep. 2022 The waves stirred the rocks and sediment on the shallow shelf and removed most of the algae growth, limiting the amount of food available to the pupfish in the short term. Stephen Sorace, Fox News, 22 Sep. 2022 An annual count to tally the pupfish inside Devils Hole is set to take place this upcoming weekend, the park service said. Emily Mae Czachor, CBS News, 22 Sep. 2022 Hole pupfish has paddled back from the brink in a hellish desert domain. Los Angeles Times, 5 May 2022 The Tecopa pupfish, a native of the hot springs of the Mojave Desert, has the distinction of being the first animal declared extinct under the provisions of the Endangered Species Act of 1973. Daisy Hernandez, Popular Mechanics, 21 Apr. 2022 Before the 1990s, there were about 200 pupfish; since then, their numbers have fallen as low as 90. Mary Forgione, Los Angeles Times, 28 Apr. 2022 The pupfish’s decline was precipitated when its natural habitat was encroached upon by developers. Daisy Hernandez, Popular Mechanics, 21 Apr. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pupfish.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

First Known Use

1949, in the meaning defined above

Time Traveler
The first known use of pupfish was in 1949

Dictionary Entries Near pupfish

Cite this Entry

“Pupfish.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pupfish. Accessed 29 Jan. 2023.

More from Merriam-Webster on pupfish

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Fashionable Words

  • dog-sunglasses-scarf
  • Which of these items is named for a deadly weapon?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

Solve today's spelling word game by finding as many words as you can with using just 7 letters. Longer words score more points.

Can you make 12 words with 7 letters?