sargassum

noun

sar·​gas·​sum sär-ˈga-səm How to pronounce sargassum (audio)
: any of a genus (Sargassum) of brown algae that have a branching thallus with lateral outgrowths differentiated as leafy segments, air bladders, or spore-bearing structures : gulfweed

Examples of sargassum in a Sentence

Recent Examples on the Web On land, sargassum begins to rot and produces smelly hydrogen sulfide and ammonia, which can irritate eyes, ears, and noses. Dinah Voyles Pulver, The Enquirer, 12 June 2024 This sargassum, or the stinky seaweed that piles up on shore, can last from April to October. Meagan Drillinger, Travel + Leisure, 9 June 2024 The thought on that, although it hasn't been yet completely scientifically proven, is that there have been episodes of sargassum. Cnt Editors, Condé Nast Traveler, 30 Mar. 2023 The sargassum could reach the Lesser Antilles, on the far eastern side of the Caribbean, within a couple of months, Hu said. The Enquirer, 23 Feb. 2024 The sargassum could reach the Lesser Antilles, on the far eastern side of the Caribbean within a couple of months, Hu said. USA TODAY, 24 Jan. 2024 Leaving the sargassum in place creates its own problems: The algae contains arsenic, which can leach into groundwater. Leyla Santiago, CNN, 1 May 2023 The equipment also may allow Woods Hole researchers to examine the relationship between coastal runoff and the blooms of sargassum that have been choking coastlines in the Caribbean and Southeastern U.S. for years, said Bell, who uses satellite imagery to study coastal waters and their ecosystems. USA TODAY, 29 Jan. 2024 The turtles spend a few months to a few years in the shelter of the sargassum, a kindergarten of sorts, said Kevin Flannery, director of the Dingle Oceanworld Aquarium in Ireland. Jonathan Edwards, Anchorage Daily News, 2 Mar. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'sargassum.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

borrowed from New Latin, borrowed from Portuguese sargaço sargasso

First Known Use

circa 1890, in the meaning defined above

Time Traveler
The first known use of sargassum was circa 1890

Dictionary Entries Near sargassum

Cite this Entry

“Sargassum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sargassum. Accessed 16 Jun. 2024.

Kids Definition

sargassum

noun
sar·​gas·​sum sär-ˈgas-əm How to pronounce sargassum (audio)
: any of a genus of brown algae that have a leafy branching body and air bladders and that often grow in free-floating masses in the ocean

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