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sea lamprey
noun
: a large anadromous lamprey (Petromyzon marinus) that has a mottled upper surface, is an ectoparasite of fish, and is sometimes used as food
Examples of sea lamprey in a Sentence
Recent Examples on the Web
The number of sea lampreys in Lake Superior is estimated to be around 200,000.
—Tom Howarth, Newsweek, 7 Jan. 2025
Some rivers also have sea lamprey traps or barriers.
—Paul A. Smith, USA TODAY, 6 Jan. 2025
The chemical blocks the respiration process of the sea lampreys.
—Paul A. Smith, USA TODAY, 6 Jan. 2025
Just a single sea lamprey kills 40 pounds of fish each year, according to the National Ocean Service.
—Ashlyn Messier, Fox News, 9 Aug. 2023
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Word History
First Known Use
1879, in the meaning defined above
Dictionary Entries Near sea lamprey
Cite this Entry
“Sea lamprey.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sea%20lamprey. Accessed 21 Jan. 2025.
Kids Definition
sea lamprey
noun
: a lamprey of the Atlantic coast that is also found in the Great Lakes and that attaches to and feeds on other fishes with its round sucking mouth
More from Merriam-Webster on sea lamprey
Britannica.com: Encyclopedia article about sea lamprey
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