Sargasso Sea

American  

noun

1. a relatively calm area of water in the N Atlantic, NE of the West Indies.

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Sargasso Sea British  

noun

1. a calm area of the N Atlantic, between the Caribbean and the Azores, where there is an abundance of floating seaweed of the genus Sargassum

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Example Sentences

This timing is notable because in 2010 strong winds transported brown algae from the Sargasso Sea into the tropical Atlantic for the first time.

From Science Daily • Nov. 19, 2025

"And we've still yet to see breeding at the Sargasso Sea."

From BBC • Aug. 30, 2025

Rachel Carson, for her part, rejected the long-held notion that the algae had been responsible for stranding ships in the 1400s, pointing out that even in the Sargasso Sea, it wasn’t concentrated enough for that.

From Slate • Jul. 16, 2023

An effort led by the government of Bermuda is advocating for the Atlantic Ocean’s Sargasso Sea, which also contains a garbage patch, to be named a marine protected area.

From Science Magazine • May 17, 2023

During one of the few lulls in the storm, Dad leaned back slightly and asked, "What do the turtles do after they’ve finished their five to ten years in the Sargasso Sea?"

From "The View From Saturday" by E.L. Konigsburg