- any one of a few tropical foodfish, of household Polynemidae, that have long filaments below the pectoral fin; the threadfins
- Any one of numerous species of tropical food fishes of the family Polynemidæ. They have several slender filaments, often very long, below the pectoral fin. Some of them yield isinglass of good quality. Called also threadfish.
- A fish regarding the genus Polynemus.
Variant for "polyneme"
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