Acidic

1. (chemistry) Having a pH less than 7, or being sour, or having the strength to neutralize alkalis, or turning a litmus paper red.
2. (mineralogy) Containing a high percentage of silica; opposed to basic.
3. Of or relating to acid; having the character of an acid.

Synonyms

• acid

Antonyms

• (having pH less than 7): basic