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acids

  • plural
    of acid.
    acid
    noun
    a compound usually having a sour taste and capable of neutralizing alkalis and reddening blue litmus paper, containing hydrogen that can be replaced by a metal or an electropositive group to form a salt, or containing an atom that can accept a pair of electrons from a base. Acids are proton donors that yield hydronium ions in water solution, or electron-pair acceptors that combine with electron-pair donors or bases.

Example Sentences

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More skincare products aren't necessarily better A complicated routine with frequent exfoliations or strong acids can irritate young skin.

From BBC ● Sep. 21, 2026

Dr Kently says he's seen an exponential rise in a condition called perioral dermatitis in teens, which is related to the overuse of ingredients that strip skin barriers like exfoliating hydroxy acids and retinoids.

From BBC ● Sep. 21, 2026

They also collected fecal samples to examine changes in the gut microbiome and measure concentrations of short-chain fatty acids.

From Science Daily ● Aug. 31, 2026

A substantial rise in fatty acids and liver-derived proteins associated with the demands of endurance exercise did not appear in the bloodstream until three hours after the workout.

From Science Daily ● Aug. 21, 2026

There must be ways of putting nucleic acids together that will function far better—by any criterion we choose—than any human being who has ever lived.

From "Cosmos" by Carl Sagan