Plural of gizzard; the muscular part of a bird's stomach that grinds food, or in cooking, this organ when used as food.
Middle English giser, from Old French gésier, possibly from Latin gigeria meaning 'poultry entrails'; the word has referred to this specific organ since medieval times.
Gizzards are actually brilliant evolutionary engineering—since birds don't have teeth, they swallow gravel and their gizzard muscles grind it all up, which is why chickens peck at stones and you sometimes find gravel in gizzard dishes.
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