Dictionary
be•lu•ga
Pronunciation: (bu-lOO'gu), [key]—
n.
1. Also called
hausen. a white sturgeon,
Huso huso, of the Black and Caspian seas, valued as a source of caviar and isinglass.
2. Also called
white whale. a cetacean,
Delphinapterus leucas, of northern seas, that has a rounded head and is white when adult.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.