from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. See white whale.
  • n. A large white sturgeon (Huso huso) of the Black and Caspian seas, whose roe is processed into caviar. Also called beluga sturgeon, whitefish.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A cetacean, Delphinapterus leucas, found in the Arctic Ocean.
  • n. A fish, Huso huso, found in the Caspian Sea and the Black Sea, that is a source of caviar

from the GNU version of the Collaborative International Dictionary of English

  • n. A cetacean allied to the dolphins.
  • n. the sturgeon (Huso huso) native to the Black Sea and Caspian Sea; -- also called hausen. It is valued for its roe, sold as caviar, and is also used for production of isinglass. See also sturgeon.
  • n. the caviar obtained from the beluga{2}; -- also called beluga caviar. The caviar of the beluga is considered the finest sort, larger and of a taste superior to that obtained from other sturgeon. See also sturgeon and caviar.

from The Century Dictionary and Cyclopedia

  • n. The large white sturgeon, Acipenser huso, from the roe of which, sometimes weighing 800 pounds, caviar or botargo is prepared.
  • n. [capitalized] [NL.] A generic name of the white whales: a synonym of Delphinapterus.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. valuable source of caviar and isinglass; found in Black and Caspian seas
  • n. small northern whale that is white when adult


Russian belukha, white whale, and beluga, sturgeon : belyĭ, white
(American Heritage® Dictionary of the English Language, Fourth Edition)
From the Russian word белуга (belúga) (in turn белый (bélyj, "white")). In modern standard Russian белуга (belúga) means the fish only (the "European sturgeon") and белуха (belúxa) a "white whale". (Wiktionary)



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