threadfin

[ thred-fin ]

noun

1. any of the silvery, spiny-rayed fishes of the family Polynemidae, having the lower part of the pectoral fin composed of numerous, separate, filamentous rays.

threadfin

/ ˈθrɛdˌfɪn /

noun

1. any spiny-finned tropical marine fish of the family Polynemidae, having pectoral fins consisting partly of long threadlike rays

Word History and Origins

Origin of threadfin¹

First recorded in 1885–90; thread + fin ¹