a large, deep-bodied, brilliantly colored, oceanic food fish, Lampris regius.

1740–50; < an unidentified West African source

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World English Dictionary
opah (ˈəʊpə)
moonfish, Also called: kingfish a large soft-finned deep-sea teleost fish, Lampris regius (or luna), of the Atlantic and Pacific Oceans and the Mediterranean Sea, having a deep, brilliantly coloured body: family Lampridae
[C18: of West African origin]

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Encyclopedia Britannica


large marine fish of the family Lampridae (order Lampridiformes), widely distributed in warm oceans. A deep-bodied fish with a small, toothless mouth, the opah grows to a length of about 2 m (7 feet) and a weight of 140 kg (300 pounds), although larger specimens have been reported. It is distinctively coloured, blue above and rosy below, with scarlet fins and jaws and round white spots on the body. Although uncommon, it is valued as food.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
Thick-lipped opah with eyes the size of hockey pucks rimmed with gold.
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