gizzard: Meaning and Definition of

giz•zard

1. Also calleda thick-walled, muscular pouch in the lower stomach of many birds and reptiles that grinds food, often with the aid of ingested stones or grit.
2. Also calleda similar structure in the foregut of arthropods and several other invertebrates, often lined with chitin and small teeth.
3. the innards or viscera collectively, esp. the intestine and stomach.