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 of beluga
Russian, from belyĭ white; akin to Greek phalios having a white spot — more at bald
First Known Use: 1772
Learn More about beluga
Britannica.com: Encyclopedia article about "beluga"
Seen and Heard
What made you want to look up beluga? Please tell us where you read or heard it (including the quote, if possible).