sargasso

/sɑrˈɡæsoʊ/
noun
  1. A floating mass of brown seaweed (Sargassum) found in warm ocean waters, especially in the Sargasso Sea.
    • Marine animals like young sea turtles often hide in sargasso for protection.
    • The ship sailed through a thick patch of sargasso that slowed its progress.
    • Scientists study sargasso to understand ocean ecosystems and currents.
Synonyms