Definitions for "Sargassum"
A genus of algæ including the gulf weed.
Sargassum is a genus of generally planktonic macroalgae in the order Fucales.
brown algae with rounded bladders forming dense floating masses in tropical Atlantic waters as in the Sargasso Sea
A free-floating brown seaweed that occurs in warm marine environments.
Any of several brown algae that are widely distributed in the warmer waters; the floating common gulfweed.