(n) brown algae with rounded bladders forming dense floating masses in tropical Atlantic waters as in the Sargasso Sea, Syn. Sargassum bacciferum, sargasso, sargassum
[ほんだわら(馬尾藻;神馬藻);なのりそ(神馬藻;莫告藻)(ok);なのりそも(莫告藻)(ok);ホンダワラ, hondawara ( uma o mo ; kami uma mo ); nanoriso ( kami uma mo ; baku koku mo )(ok); ] (n) (uk) Sargassum fulvellum (species of edible brown alga)