gastrolith

noun

gas·tro·lith | \ ˈga-strə-ˌlith

Definition of gastrolith

: a stone or pebble ingested by an animal and functioning to grind food in gastric digestion

Recent Examples on the Web

Display cases also hold opalized freshwater crayfish gastroliths, or yabby buttons, which are found only in Lightning Ridge’s opal mines. — Michelle Innis, New York Times, "An Australian Town’s Rare Mix: Dinosaur Bones and Opalized Pine Cones," 5 July 2016

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More Definitions for gastrolith

gastrolith

noun

gas·tro·lith | \ ˈga-strə-ˌlith

: a gastric calculus