Definition of beluga
2 [Russian belukha, from belyĭ] : a toothed whale (Delphinapterus leucas) of arctic and subarctic waters having a fusiform body that is about 10 to 15 feet (3.0 to 5.0 meters) long and white when mature —called also white whale
Origin and Etymology of beluga
Russian, from belyĭ white; akin to Greek phalios having a white spot — more at bald
First Known Use: 1744
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