threadfin(redirected from threadfins)
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Related to threadfins: Polynemidae
n. pl. threadfin or thread·fins
Any of various chiefly tropical marine fishes of the family Polynemidae, having threadlike rays extending from the lower part of the pectoral fin.
n, pl -fin or -fins
(Animals) any spiny-finned tropical marine fish of the family Polynemidae, having pectoral fins consisting partly of long threadlike rays
any spiny-rayed fish of the family Polynemidae, having the lower part of the pectoral fin terminating in threadlike rays.
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|Noun||1.||threadfin - mullet-like tropical marine fishes having pectoral fins with long threadlike rays|