n.
Any of various large ganoid freshwater and marine fishes of the family Acipenseridae of the Northern Hemisphere, having edible flesh and valued as a source of caviar and isinglass.
[Middle English, from Anglo-Norman, from Old French estourgeon, of Germanic origin.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
