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Meaning of threadfin

thread•fin

Pronunciation: (thred'fin"), [key]
— n.
  1. any spiny-rayed fishes of the family Polynemidae, having the lower part of the pectoral fin composed of numerous, separate, filamentous rays.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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