Definition of dust ball
: a concretion composed of vegetable or mineral matter found in the intestines (as of the horse) and varying in size from a few ounces to several pounds —called also intestinal calculus — compare hair ball
Join MWU now and get access to America’s largest dictionary, with:
- 300,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Seen and Heard
What made you want to look up dust ball? Please tell us where you read or heard it (including the quote, if possible).