pen·ta·none | \ ˈpentəˌnōn \
plural -s
Definition of pentanone
: either of two isomeric flammable liquid ketones derived from normal pentane:
a : the unsymmetrical compound CH3CH2CH2COCH3
— called also methyl propyl ketone, 2-pentanone
b : the symmetrical compound (C2H5)2CO obtainable from propionic acid
— called also diethyl ketone, 3-pentanone, propione
Keep scrolling for more
Test Your Vocabulary
Words of Snow and Ice Quiz
- Which of the following refers to thin, bending ice, or to the act of running over such ice?

Test your knowledge - and maybe learn something along the way.
TAKE THE QUIZ
Anagram puzzles meet word search.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Word Games
Words of Snow and Ice Quiz
A selection of words from the chillier parts of t...
Take the quizName that Thing: Toys and Games Edition
It's all fun and games until someone beats your h...
Take the quizTrue or False?
Test your knowledge - and maybe learn something a...
Take the quizSCRABBLE® Sprint
SCRABBLE® fans, sharpen your skills!
Play the game
Share pentanone