acid

adjective

  1. 1

    having the characteristics of an acid

    an acid reaction

  2. 2

    harsh or corrosive in tone

    an acerbic tone piercing otherwise flowery prose

    a barrage of acid comments

  3. 3

    being sour to the taste

noun

  1. 1

    street name for lysergic acid diethylamide

  2. 2

    any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt

Synonyms

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