Definition of acid

Definition of acid
  1. acid Adjective Sour, sharp, or biting to the taste; tart; having the taste of vinegar.
  2. acid Adjective Sour-tempered.
  3. acid Adjective Of or pertaining to an acid; acidic.
  4. acid Adjective Denoting a musical genre that is a distortion (as if hallucinogenic) of an existing genre, as in acid house, acid jazz, acid rock.
  5. acid Noun A sour substance.
  6. acid Noun Any of several classes of compound having the following properties:-
  7. acid Noun lysergic acid diethylamide
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