1. Small northern whale that is white when adult
   "The beluga's distinctive white colouring stood out against the dark Arctic waters";
   - white whale, Delphinapterus leucas
    
2. Largest freshwater fish in Europe, prized for caviar
   "beluga are critically endangered due to overfishing";
   - hausen, Acipenser huso, Huso huso, beluga sturgeon

Derived forms: belugas

Type of: dolphin, sturgeon

Part of: Acipenser, Delphinapterus, genus Acipenser, genus Delphinapterus

Encyclopedia: Beluga, Alaska