duckweed

noun

duck·​weed ˈdək-ˌwēd How to pronounce duckweed (audio)
: a small floating aquatic monocotyledonous plant (family Lemnaceae, the duckweed family)

Examples of duckweed in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Four days into the search, a young fisherman found her body face down, wrapped in duckweed in the Mississippi River near Brownsville, Minnesota. Alexandra Koch, FOXNews.com, 25 July 2025 Aquatic vegetation like eelgrass, hydrilla and duckweed are crucial to the ecology of a spring. Kathryn Varn, Axios, 2 Aug. 2024 Sediment and overgrowth of a plant called duckweed, caused by nutrients that come with sediment, are threatening the lake's wildlife and recreational activities, the park's website reads. Victoria Moorwood, The Enquirer, 1 Apr. 2024 The diet can get costly due to the amount of whole foods and fresh produce (not to mention sourcing and paying for all that duckweed) required to adhere to this nutrition plan, says Piper. Perri O. Blumberg, Men's Health, 29 Mar. 2023 See All Example Sentences for duckweed

Word History

First Known Use

15th century, in the meaning defined above

Time Traveler
The first known use of duckweed was in the 15th century

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Cite this Entry

“Duckweed.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/duckweed. Accessed 6 Aug. 2025.

Kids Definition

duckweed

noun
duck·​weed ˈdək-ˌwēd How to pronounce duckweed (audio)
: a tiny stemless plant that floats without attachment on the surface of a body of still water (as a pond)

More from Merriam-Webster on duckweed

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