ketone

[ kee-tohn ]

/ ˈki toʊn /

noun Chemistry.

any of a class of organic compounds containing a carbonyl group, CO, attached to two alkyl groups, as CH3COCH3 or CH3COC2H5.

adjective

containing the ketone group.

QUIZZES

CHALLENGE YOURSELF WITH THIS MIDDLE SCHOOL PART OF SPEECH QUIZ!

How well do you know your adjectives from your adverbs? Your preposition from your pronouns? Your interjections from your conjunctions? Let’s put your knowledge of parts of speech to the text! Note: Many of the following questions will ask you to identify the parts of speech “in order.” That means the first word in all capital letters will correspond to the first option in an answer, and so on.

Question 1 of 10

In order, what parts of speech are the words in all capital letters? Alisa was VERY tired, SO she decided to go to bed.

adverb, adverb

adverb, conjunction

adjective, conjunction

TAKE THE QUIZ TO FIND OUT

Origin of ketone

1850–55; < German Keton, aphetic alteration of Aceton acetone

OTHER WORDS FROM ketone

ke·ton·ic

[ki-ton-ik] /kɪˈtɒn ɪk/, adjective

Words nearby ketone

ketol, ketole, ketolysis, ketolytic, ketonaemia, ketone, ketone body, ketone group, ketonemia, ketonuria, ketose

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for ketone

If the groups R and R′ are identical, the ketone is called a simple ketone, if unlike, a mixed ketone.
Encyclopaedia Britannica, 11th Edition, Volume 15, Slice 7|Various
The hexoses all contain five alcoholic groups and one primary aldehyde, or one secondary aldehyde (ketone), group.
The Chemistry of Plant Life|Roscoe Wilfred Thatcher
Even the common linseed contains a glucoside which breaks up into sugar, prussic acid, and a ketone.
Poisons: Their Effects and Detection|Alexander Wynter Blyth
Besides methyl salicylate, the oil contains triaconitane, an aldehyde or ketone, and an alcohol.
The Handbook of Soap Manufacture|W. H. Simmons

Ionone, a ketone first prepared by Tiemann, and having when diluted a pronounced violet odour.
The Handbook of Soap Manufacture|W. H. Simmons

British Dictionary definitions for ketone

ketone

/ (ˈkiːtəʊn) /

noun

any of a class of compounds with the general formula R′COR, where R and R′ are alkyl or aryl groupsSee also acetone

Derived forms of ketone

ketonic (kɪˈtɒnɪk), adjective

Word Origin for ketone

C19: from German Keton, from Aketon acetone

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for ketone

ketone

[ kē′tōn′ ]

n.

Any of a class of organic compounds having a carbonyl group linked to a carbon atom in each of two hydrocarbon radicals.

Scientific definitions for ketone

ketone

[ kē′tōn′ ]

Any of a class of organic compounds having the general formula RCOR′, where R and R′ are hydrocarbon radicals that are both attached to the carbon atom of the carbonyl (CO) group. Acetone is a ketone.