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

Examples of gastrolith in a Sentence

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

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'gastrolith.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of gastrolith

1854, in the meaning defined above

Keep scrolling for more

Learn More about gastrolith

Share gastrolith

Statistics for gastrolith

Look-up Popularity

Time Traveler for gastrolith

The first known use of gastrolith was in 1854

See more words from the same year

Keep scrolling for more

More Definitions for gastrolith


gas·tro·lith | \ ˈga-strə-ˌlith \

Medical Definition of gastrolith 

: a gastric calculus

More from Merriam-Webster on gastrolith

See words that rhyme with gastrolith Encyclopedia article about gastrolith

Comments on gastrolith

What made you want to look up gastrolith? Please tell us where you read or heard it (including the quote, if possible).


the setting in which something occurs

Get Word of the Day daily email!

Test Your Vocabulary

Musical Words Quiz

  • gramophone
  • Which word describes a musical performance marked by the absence of instrumental accompaniment?
True or False

Test your knowledge - and maybe learn something along the way.

Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!