a stony concretion formed in the stomach
Origin of gastrolithgastro- + -lith
- A pathological stony mass formed in the stomach; gastric calculus.
- A small stone found in the stomach of some reptiles, fish, and birds that aids in digestion by helping grind ingested food material.
- (zoology) rocks which are or have been held inside the digestive tract of an animal to aid in buoyancy or food processing.