fairy shrimp definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
any of an order (Anostraca) of crustaceans, usually formed in temporary freshwater pools in early spring, having delicate colors and a graceful swimming motion
fairy shrimp definition by American Heritage Dictionary
Any of various transparent freshwater crustaceans of the order Anostraca that lack a carapace and characteristically swim upside-down.