Gulfweed definition
Any of several brownish seaweeds of the genus Sargassum having rounded air bladders and often forming dense, floating masses in the Atlantic Ocean.
noun
A brown algae (genus Sargassum) with berrylike air sacs, found floating in the Gulf Stream, Pacific Ocean, etc.
noun
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Other Word Forms
Noun
Singular:
gulfweed
Plural:
gulfweedsOrigin of gulfweed
- After the Gulf of Mexico
From American Heritage Dictionary of the English Language, 5th Edition