Definition of acetic acid in English:

acetic acid

Syllabification: a·ce·tic ac·id
Pronunciation: /əˌsētik ˈasid


  • The acid that gives vinegar its characteristic taste. The pure acid is a colorless viscous liquid or glassy solid.
    • Chemical formula: CH3COOH
    More example sentences
    • By the time this stage is reached the wine is no longer wine but wine vinegar which combines the sharp, acid taste of acetic acid with the odour of ethyl acetate.
    • At this time, the Arab alchemist Jabir ibn Hayyan Geber produced concentrated acetic acid by distilling vinegar.
    • Indeed, the synthesis of ethanol predates recorded history and acetic acid is oxidized ethanol or wine gone bad.


late 18th century: acetic from French acétique, from Latin acetum 'vinegar'.

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