killifish
noun
kil·li·fish
ˈki-li-ˌfish 
1
: any of a family (Cyprinodontidae) of numerous small oviparous fishes much used as bait and in mosquito control
2
: any of various live-bearers (family Poeciliidae)
Examples of killifish in a Sentence
Recent Examples on the Web
Nagy also discovered three more new species of seasonal killifish and one new species of lampeye fish.
—
Aspen Pflughoeft
july 9, Miami Herald, 9 July 2025
During their 2023 surveys, researchers found a few unfamiliar-looking killifish, the study said.
—Aspen Pflughoeft
july 9, Miami Herald, 9 July 2025
In Argentina’s Chaco National Park, researchers found a new species of giant killifish named Titanolebias calvinoi in a shallow, drying pond.
—Real-Time News Team, Miami Herald, 9 May 2025
Forest killifishes are unusual because of their preferred forest habitat.
—Aspen Pflughoeft, Miami Herald, 14 Mar. 2025
See All Example Sentences for killifish
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Aspen Pflughoeft
july 9, Miami Herald, 9 July 2025
During their 2023 surveys, researchers found a few unfamiliar-looking killifish, the study said.
—Aspen Pflughoeft
july 9, Miami Herald, 9 July 2025
In Argentina’s Chaco National Park, researchers found a new species of giant killifish named Titanolebias calvinoi in a shallow, drying pond.
—Real-Time News Team, Miami Herald, 9 May 2025
Forest killifishes are unusual because of their preferred forest habitat.
—Aspen Pflughoeft, Miami Herald, 14 Mar. 2025
See All Example Sentences for killifish
Cite this Entry
“Killifish.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/killifish. Accessed 22 Aug. 2025.
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