acetic acid

noun

Chemistry.

1. a colorless, pungent, water-miscible liquid, C 2 H 4 O 2 , the essential constituent of vinegar, produced by oxidation of acetaldehyde, bacterial action on ethyl alcohol, the reaction of methyl alcohol with carbon monoxide, and other processes: used chiefly in the manufacture of acetate fibers and in the production of numerous esters that are solvents and flavoring agents.

acetic acid

noun

1. Systematic name: ethanoic acid. a colourless pungent liquid, miscible with water, widely used in the manufacture of acetic anhydride, vinyl acetate, plastics, pharmaceuticals, dyes, etc. Formula: CH 3 COOH See also glacial acetic acid vinegar

acetic acid

1. A clear, colorless organic acid having a distinctive pungent odor. It is used as a solvent and in the manufacture of rubber, plastics, acetate fibers, pharmaceuticals, and photographic chemicals. Acetic acid is the chief acid of vinegar. Chemical formula: C ₂ H ₄ O ₂ .

Word History and Origins

Origin of acetic acid¹

First recorded in 1800–10