pinacolone

noun

pi·​nac·​o·​lone

-ˌlōn

plural -s

1

: a liquid ketone (CH₃)₃COCH₃ of peppermint odor formed from pinacol by treatment with acid to cause loss of water and molecular rearrangement; 3,3-dimethyl-2-butanone

2

: any of a series of ketones R₃CCOR formed like pinacolone from other pinacols

Word History

Etymology

pinacol + -one

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now