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Definition of threadfin

threadfin

/ˈθrɛd.fɪn/
thread · fin
Plural:threadfins
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threadfin Lexical Profile

threadfin Game Scores & Validity

• noun

1

Any of various marine and brackish water fishes of the family Polynemidae, found primarily in tropical and subtropical waters, characterized by having the lower rays of their pectoral fins separated into long, sensory, thread-like filaments.

Example

"Local fishermen cast their nets near the muddy estuary, hoping to catch a substantial haul of threadfin for the coastal seafood market."

Synonyms
View all synonyms for threadfin

• Rhymes for threadfin

• Nearby Words

threadbare
threaded
threader
threadfin
threading
threadlike
threadmaker

Word Origin & Etymology

Formed as a compound of the English words 'thread' and 'fin', directly referring to the distinctively long, separated, filament-like lower rays of the fish's pectoral fins.

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Threadfin. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/threadfin
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