acidic

Meanings

1. 1
   adj

   being or containing an acid

   The liquid was acidic.

2. 2
   adj

   being sour to the taste

   It had a sharp, acidic taste.

3. 3
   adj

   Of or relating to acid; having the character of an acid.

   an acidic solution

4. 4
   adj

   Having a pH less than 7, or being sour, or having the strength to neutralize alkalis, or turning a litmus paper red.

   The swampland is an extensive pegasse swamp, which is rich in organic matter and intensely acidic.

5. 5
   adj

   Containing a high percentage of silica-bearing minerals.

Etymology

From acid + -ic. Doublet of acidy.