Share this entry
ketone Syllabification: ke·tone
Pronunciation: /ˈkētōn/

Definition of ketone in English:


An organic compound containing a carbonyl group CO bonded to two hydrocarbon groups, made by oxidizing secondary alcohols. The simplest such compound is acetone.
Example sentences
  • Low molecular weight aldehydes and ketones are soluble in water because the carbonyl oxygen atom allows the molecules to form strong hydrogen bonds with the molecules of water.
  • Over time, however, it oxidizes and chemically degrades to form alcohols, ketones, aldehydes, acids and esters.
  • In this reaction, an ester joins with another ester, a ketone, or a nitrile.


Pronunciation: /kēˈtänik/
Example sentences
  • This type of reaction gives as its product a beta ketonic ester, ketone, or nitrile (depending upon the starting compounds) and an alcohol.


Mid 19th century: from German Keton, alteration of Aketon 'acetone'.

Definition of ketone in:
Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Subscribe to remove ads and access premium resources