Search Dictionary
Definition of threadfin

threadfin

/ˈθrɛd.fɪn/
thread · fin
Plural:threadfins
JUMP TO:

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

thrasher
thread
thread snake
threadfin
three chute
three-lined corydoras
three-spot gourami

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 Oct 14, 2026, from https://wordmom.com/dictionary/threadfin
Wordmom is your complete guide to the English language. Whether you're looking up a definition, searching for the perfect synonym, or unscrambling letters for a word game, our comprehensive suite of tools is designed to help you find the right word, every time.
Word Games & Solvers
Word FinderScrabble Word FinderWords With Friends CheatWordle SolverAnagram Solver
Dictionary & Reference
DictionarySynonymsAntonymsWords
Community
Contact UsEditorial PolicyPrivacy PolicyTerms and Conditions
© 2016–2026 Wordmom Network. All rights reserved. Made with for word lovers everywhere.
Disclaimer: SCRABBLE®, Words With Friends®, Wordle®, and related game titles or tournament codes are registered trademarks of their respective owners (including Hasbro, Mattel, Zynga, The New York Times, NASPA, and WESPA). Wordmom is an independent reference utility for educational and entertainment purposes, not affiliated with, sponsored, or endorsed by these entities. All game names are referenced strictly under nominative fair use for compatibility.