sargassum
noun
sar·gas·sum
sär-ˈga-səm 
: 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
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Sun Sentinel Record-breaking seaweed in Atlantic could mean stinky beaches in South Florida
Levels of floating seaweed mats, known as sargassum, have skyrocketed in the Atlantic Ocean in the past month, with the total amount breaking the record for March.
—
South Florida Sun Sentinel, Sun Sentinel, 2 Apr. 2025
Researchers think the Gulf will start to see more sargassum in the coming weeks.
—Bill Kearney, Sun Sentinel, 1 Apr. 2025
The report said that during the last week of December, small amounts of sargassum had already reached the Lesser Antilles.
—Bill Kearney, Sun Sentinel, 14 Jan. 2025
The hatchlings then drift in the open ocean, clinging to floating sargassum and feeding on small organisms found in the seaweed.
—Smithsonian Magazine, 7 Mar. 2025
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South Florida Sun Sentinel, Sun Sentinel, 2 Apr. 2025
Researchers think the Gulf will start to see more sargassum in the coming weeks.
—Bill Kearney, Sun Sentinel, 1 Apr. 2025
The report said that during the last week of December, small amounts of sargassum had already reached the Lesser Antilles.
—Bill Kearney, Sun Sentinel, 14 Jan. 2025
The hatchlings then drift in the open ocean, clinging to floating sargassum and feeding on small organisms found in the seaweed.
—Smithsonian Magazine, 7 Mar. 2025
See All Example Sentences for sargassum
Cite this Entry
“Sargassum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sargassum. Accessed 1 May. 2025.
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sargassum
noun
sar·gas·sum
sär-ˈgas-əm
: 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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