pirarucu

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noun pi·ra·ru·cu \pi-ˌrär-ə-ˈkü\

Definition of pirarucu

  1. :  a large-scaled, predatory, freshwater fish (Arapaima gigas of the family Arapaimidae) of the rivers of northern South America that is an esteemed food fish, has a toothed tongue, and may reach a length of nearly 10 feet (3 meters) and a weight of over 300 pounds (136 kilograms) but is typically smaller The pirarucu has been placed especially formerly in the same family (Osteoglossidae) as the arowanas .

Origin and Etymology of pirarucu

Portuguese, from Tupi pirawrukú, from pirá fish + urukú annatto


First Known Use: 1840


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