Ketone

//ˈkiːtəʊn// noun

noun ·Uncommon ·Advanced level

Definitions

Noun
  1. 1
    A homologous series of organic molecules whose functional group is an oxygen atom joined to a carbon atom—by a double bond—in a carbon-hydrogen based molecule.

    "acetone R₁ = R₂ = CH₃"

  2. 2
    any of a class of organic compounds having a carbonyl group linked to a carbon atom in each of two hydrocarbon radicals wordnet

Synonyms

All synonyms
alcoholchemical

Example

More examples

"methyl ethyl ketone R₁ = CH₃, R₂ = C₂H₅"

Etymology

From German Keton, from Aketon (“acetone”), from French acétone (“acetone”). See acetone.

Related phrases

Michler's ketoneWieland-Miescher ketonedimethyl ketoneketone bodymethyl ethyl ketone peroxidemethyl isobutyl ketonemethyl vinyl ketonepolyether ether ketonepolyetherether ketonepolyetherether-ketoneraspberry ketonefunctional group

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Next best steps

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.