# threadfin

> English word · Noun · IPA /ˈθɹɛdfɪn/

## Definitions
1. Any of many fish of the family Polynemidae.

## Etymology
From thread + fin. Named so because of the thread-like free sensory filaments at the base of each of their pectoral fins.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/threadfin