beluga
/bəˈluːgə/noun
(复同单, 或belugas)
1
- a small white toothed whale related to the narwhal, living in herds mainly in Arctic coastal waters白鲸。亦称WHITE WHALE.
1.1
- Delphinapterus leucas, family Monodontidae.拉丁名Delphinapterus leucas,一角鲸科。
2
- a very large sturgeon occurring in the inland seas and associated rivers of central Eurasia白鲟（见于欧亚大陆中部的内海及相连的河流）。
2.1
- Huso huso, family Acipenseridae.拉丁名Huso huso,鲟科。
2.2
- （亦作beluga caviar）[mass noun] caviar obtained from this fish白鲟鱼子酱。
词源
late 16th cent. (in sense 2)： from Russian belukha (sense 1)， beluga (sense 2)， both from belyǐ 'white'.