馬尾藻類海草
Sargasso \Sar*gas"so\, n. [Sp. sargazo seaweed.] (Bot.) The gulf weed. See under {Gulf}. {Sargasso Sea}, a large tract of the North Atlantic Ocean where sargasso in great abundance floats on the surface.
sargasso n : brown algae with rounded bladders forming dense floating masses in tropical Atlantic waters as in the Sargasso Sea [syn: {gulfweed}, {sargassum}, {Sargassum bacciferum}]