beluga

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noun be·lu·ga \bÉ™-ˈlü-gÉ™\

Definition of BELUGA

1

:  a large white sturgeon (Huso huso syn. Acipenser huso) of the Black Sea, Caspian Sea, and their tributaries; also :  caviar processed from beluga roe — compare osetra, sevruga

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

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Illustration of BELUGA

Origin of BELUGA

Russian, from belyĭ white; akin to Greek phalios having a white spot — more at bald

First Known Use: 1772

Rhymes with BELUGA

Kaluga, sastruga, sevruga, Tortuga, Vetluga