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2 definitions found
 for acidic
From The Collaborative International Dictionary of English v.0.48 :

  Acidic \A*cid"ic\, a. (Min.)
     1. Containing a high percentage of silica; -- opposed to
        basic.
        [1913 Webster]
  
     2. of or relating to acid; having the character of an acid,
        as an acidic solution.
        [PJC]

From WordNet (r) 3.0 (2006) :

  acidic
      adj 1: being or containing an acid; of a solution having an
             excess of hydrogen atoms (having a pH of less than 7)
             [ant: alkalic, alkaline, amphiprotic, amphoteric]
      2: being sour to the taste [syn: acidic, acid, acidulent,
         acidulous]

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