threadfin(redirected from Polynemid)
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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|