sturgeon

 
Pronunciation: /ˈstəːdʒ(ə)n/

noun

  • a very large primitive fish with bony plates on the body. It occurs in temperate seas and rivers of the northern hemisphere, especially central Eurasia, and is of commercial importance for its caviar and flesh.
    • Family Acipenseridae: several genera and species

Origin:

Middle English: from Anglo-Norman French, of Germanic origin; related to Dutch steur and German Stör