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Definition of sargassum fish
sargassum fish
Plural:sargassum fish
sargassum fish Lexical Profile
CEFR
C2
Grade
10
Tier
3
Usage
Rare
• noun
1
A small, highly camouflaged marine frogfish native to tropical and subtropical oceans, characterized by fleshy, weed-like appendages that allow it to blend seamlessly into floating mats of Sargassum seaweed.
Example
"The marine biologist carefully scooped up a piece of the floating algae, hoping to spot a well-hidden sargassum fish clinging to the fronds."
Synonyms
View all synonyms for sargassum fish• Nearby Words
Word Origin & Etymology
Named for its exclusive habitat, the floating mats of Sargassum seaweed in which it lives and hunts. 'Sargassum' derives from the Portuguese 'sargaço', meaning grapeweed.
Usage Trend
Historical frequency of usage in published text.
180019102020
Data source: Google Books Ngram Viewer
Cite this Entry
Wordmom. (2026). Definition of Sargassum fish. In Wordmom Dictionary. Retrieved Oct 15, 2026, from https://wordmom.com/dictionary/sargassum fish