These are word's definitions related to acid. Click on any word to go to its word's detail page. Or, go to the definition of acid.
0 any of various usually liquid substances that can react with and sometimes dissolve other materials:
acetic/hydrochloric/lactic acid
Vinegar is an acid.
1 slang for LSD (= an illegal drug that makes people see things that do not exist)
2 containing acid, or having similar qualities to an acid:
3 used to describe a remark or way of speaking that is cruel or criticizes something in an unkind way:
4 any of various chemical substances that can produce salts, some of which are able to damage whatever they touch