water beetle

noun

Definition of water beetle

: any of numerous oval flattened aquatic beetles (such as a diving beetle or whirligig beetle) that swim by means of their fringed hind legs which act together as oars

Examples of water beetle in a Sentence

Recent Examples on the Web

Spangler named the insect brychius hungerfordi, Hungerford's crawling water beetle, for his instructor at the biological station, entomologist Herbert B. Hungerford. Keith Matheny, Detroit Free Press, "This endangered water beetle is found only in a few streams Up North," 16 July 2019 Inside is a siren over a foot long, surrounded by a carpet of flopping tadpoles and water beetles. Asher Elbein, Washington Post, "An unintended consequence of more fencing at the border? It might make it harder to identify a new salamander species.," 18 June 2019

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

First Known Use of water beetle

circa 1668, in the meaning defined above

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Last Updated

25 Aug 2019

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Time Traveler for water beetle

The first known use of water beetle was circa 1668

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More from Merriam-Webster on water beetle

Britannica.com: Encyclopedia article about water beetle

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