A male bluegill.
bluegill 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.
a freshwater sunfish (Lepomis macrochirus) of a bluish color
bluegill definition by American Heritage Dictionary
noun pl. bluegill or blue·gills
A common edible sunfish (Lepomis macrochirus) of North American lakes and streams.