Dictionary
3 ENTRIES FOUND:

gulfweed

noun gulf·weed \ˈgəlf-ˌwēd\

Definition of GULFWEED

:  any of several sargassums; especially :  a branching olive-brown seaweed (Sargassum natans) of tropical American seas with numerous berrylike air vesicles

Origin of GULFWEED

Gulf of Mexico
First Known Use: 1674

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