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
Recent Examples on the Web
Why could this be a record sargassum year for Florida?
LaPointe said drought in South America the past couple of years led to less water flowing from the Amazon River into the Atlantic, which meant fewer nutrients to feed the fields of floating sargassum.
—
Doyle Rice, USA Today, 1 May 2025
The brown seaweed that washes up on Florida beaches is known as sargassum.
—Michelle Marchante, Miami Herald, 29 Apr. 2025
The wearable technology will allow researchers to generate dolphin-like sounds made up by A.I. to refer to specific items that dolphins enjoy, like seagrass or sargassum.
—Sara Hashemi, Smithsonian Magazine, 25 Apr. 2025
Not so happy are people trying to swim around the stuff or breathing in the fetid aroma of drying mounds of sargassum.
—Ashley Miznazi, Miami Herald, 9 May 2025
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Doyle Rice, USA Today, 1 May 2025
The brown seaweed that washes up on Florida beaches is known as sargassum.
—Michelle Marchante, Miami Herald, 29 Apr. 2025
The wearable technology will allow researchers to generate dolphin-like sounds made up by A.I. to refer to specific items that dolphins enjoy, like seagrass or sargassum.
—Sara Hashemi, Smithsonian Magazine, 25 Apr. 2025
Not so happy are people trying to swim around the stuff or breathing in the fetid aroma of drying mounds of sargassum.
—Ashley Miznazi, Miami Herald, 9 May 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 5 Jun. 2025.
Copy CitationKids Definition
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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