Definition of acetic acid in English:

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acetic acid

Pronunciation: /əˌsēdik ˈasəd/


The acid that gives vinegar its characteristic taste. The pure acid is a colorless viscous liquid or glassy solid.
  • Chemical formula: CH3COOH.
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'.

For editors and proofreaders

Syllabification: a·ce·tic ac·id

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