black marlin

noun

Definition of black marlin

  1. :  a billfish (Makaira indica) of the Pacific and Indian Oceans that is dark blue above and silvery white below, may reach a length of about 15 feet (4.6 meters) and a weight of 1,650 pounds (748 kilograms), and is a popular sport fish

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a rounded knoll or a ridge of ice

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