pi·ra·ru·cu (pĭ-rär'ə-kōō') n. See arapaima. [Portuguese pirarucú, from Tupi pirá-rucú : pirá, fish + urucú, red.] |
pirarucu
ancient, air-breathing, giant fish of Amazonian rivers and lakes. One of the largest freshwater fishes in the world, the pirarucu attains a length of nearly 3 metres (10 feet) and a weight of 220 kg (485 pounds). The fish has a peculiar profile in that the front of the body is long and narrow, whereas the rear is flat and possesses only a rudimentary, rounded tail
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