thread fish

plural of thread-fish

/θrɛd fɪʃ/
noun
  1. Any of various slender, elongated fish, especially those with long, thread-like fins or tails, such as the threadfin or certain species of arowana.
    • The thread-fish darted through the coral reef with its delicate fins trailing behind.
    • The fisherman caught a rare thread-fish with a long, ribbon-like tail.
    • Aquarium enthusiasts often keep thread-fish for their graceful appearance.
Synonyms