PH opposite of base

noun

1. A sour substance
2. Something incisive, biting, or sarcastic

   "a social satire dripping with acid"

3. Lsd

adjective

1. Sour, sharp, or biting to the taste

   "an acid flavor"

2. Sharp, biting, or sour in manner, disposition, or nature

   "an acid individual"

3. Sharply clear, discerning, or pointed

   "an acid wit"

4. Piercingly intense and often jarring

   "acid yellow"

5. Of, relating to, or being an acid
6. Derived by partial exchange of replaceable hydrogen

   "acid sodium carbonate NaHCO₃"

7. Containing or involving the use of an acid (as in manufacture)

   "an acid bath"

8. Marked by or resulting from an abnormally high concentration of acid

   "acid indigestion"

9. Relating to or made by a process in which the furnace is lined with acidic material and an acidic slag is used

   "acid steel"

10. Rich in silica

    "acid rocks"

adjective

1. Not easily decolorized by acids

noun

1. Any of the phosphatases that are enzymes active chiefly in acid medium and occur especially in the prostate gland, liver, spleen, and semen

noun

1. Precipitation (such as rain or snow) having increased acidity caused by environmental factors (such as atmospheric pollutants)

noun

1. Rain that has increased acidity caused by environmental factors (such as atmospheric pollutants)

noun

1. Backward flow of the acidic contents of the stomach into the esophagus that is due to malfunctioning of a sphincter at the lower end of the esophagus and that results especially in heartburn gastroesophageal reflux

   "a medication for acid reflux"

noun

1. Rock music with lyrics and sound relating to or suggestive of drug-induced experiences

noun

1. Snow that has increased acidity caused by environmental factors (such as atmospheric pollutants)

noun

1. A severe or crucial test