Dictionary Home »
Science » stomach
stomach science definition
- A saclike muscular organ in vertebrate animals that stores and breaks down ingested food. Food enters the stomach from the esophagus and passes to the small intestine through the pylorus. Glands in the stomach secrete hydrochloric acid and the digestive enzyme pepsin.
- A similar digestive structure of many invertebrates.
- Any of the four compartments into which the stomach of a ruminant is divided (the rumen, reticulum, omasum, or abomasum).
Learn more about stomach
Related Articles
