We found 5 dictionaries that define the word tooth powders:

General (4 matching dictionaries)

1. tooth powders: Merriam-Webster
2. tooth powders: Collins English Dictionary
3. tooth powders: Vocabulary.com
4. tooth powders: Wiktionary

Medicine (1 matching dictionary)

5. tooth powders: Merriam-Webster Medical Dictionary

(Note: See tooth_powder as well.)

Definitions from Wiktionary (tooth powder) ▸ noun:  A powder for cleaning the teeth; a dentifrice. ▸ Also see tooth_powder ▸ Words similar to tooth powders ▸ Usage examples for tooth powders ▸ Idioms related to tooth powders ▸ Wikipedia articles (New!) ▸ Words that often appear near tooth powders ▸ Rhymes of tooth powders ▸ Invented words related to tooth powders