Definition of oarfish
: a marine bony fish (Regalecus glesne) of subtropical waters with a narrow soft body from 20 to 30 feet (6 to 9 meters) long, a red dorsal fin running the entire length of the body, and red-tipped anterior rays rising above the head
Recent Examples of oarfish from the Web
A marine biology instructor spotted the carcass of an 18-foot oarfish — nature’s answer to the mythical sea serpent — while snorkeling.
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