"acidic" in the adjective sense
1. acidic
being or containing an acid of a solution having an excess of hydrogen atoms (having a pH of less than 7)
2. acidic, acid, acidulent, acidulous
being sour to the taste
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License