dealfish

/ˈdiːlˌfɪʃ/
noun
  1. A long, thin, silvery deep-sea fish with a red dorsal fin, also called the oarfish.
    • The dealfish is rarely seen because it lives in very deep ocean waters.
    • Marine biologists study the dealfish to learn more about life in the deep sea.
    • A dealfish washed ashore after the storm, surprising beachgoers with its ribbon-like body.
Synonyms
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