Definition of black tooth
1 : needle tooth
2 : a mottled condition of the teeth caused by excess fluorides in the drinking water of growing children
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 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 black tooth? Please tell us where you read or heard it (including the quote, if possible).