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Definition acid


From French acide, from Latin acidus (“sour, acid”), from aceō (“I am sour”).


acid (comparative more acid, superlative most acid)

  1. Sour, sharp, or biting to the taste; tart; having the taste of vinegar.
  2. (figuratively) Sour-tempered.
  3. Of or pertaining to an acid; acidic.
  4. (music) Denoting a musical genre that is a distortion (as if hallucinogenic) of an existing genre, as in acid house, acid jazz, acid rock.


acid (countable and uncountable, plural acids)

  1. A sour substance.
  2. (chemistry) Any of several classes of compound having the following properties:
    1. Any of a class of water-soluble compounds, having sour taste, that turn blue litmus red, and react with some metals to liberate hydrogen, and with bases to form salts.
    2. Any compound that easily donates protons; a Brønsted acid
    3. Any compound that can accept a pair of electrons to form a covalent bond; a Lewis acid
  3. (slang) lysergic acid diethylamide (LSD)

Results 100 Words with the letters ACID

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10 letter words with the letters ACID 

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