Definition of "gizzard" []

• A modified muscular pouch behind the stomach in the alimentary canal of birds, having a thick lining and often containing ingested grit that aids in the breakdown of seeds before digestion. (noun)
• A similar digestive organ found in certain invertebrates, such as the earthworm. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The CEO of Redfin, the large venture-backed real estate company, describes what he calls "gizzard squeezers" who work for investment banks and are supposed to tell you when it's a good time to raise money."
• "You may often see the Turkeys, Pheasants, Peacocks, and other birds of this Hen-family, scratching up the gravel; and you know, I daresay, that grain-eating birds have a little mill inside them called a gizzard, which grinds their food for them."
• "It is in the region of the umbilicus, _u_, and the extreme caudal end of the stomach which has been called the gizzard, _gz_."