- Main Entry:
- ke·tone

- Pronunciation:
-
\ˈkē-ˌtōn\
- Function:
- noun
- Etymology:
- German Keton, alteration of Aceton acetone
- Date:
- 1851
: any of a class of organic compounds (as acetone) that are characterized by a carbonyl group attached to two carbon atoms
—
ke·ton·ic
\kē-ˈtä-nik\
adjective