a chemical compound, usually a liquid, that contains Hydrogen and has a pH of less than seven
the hallucinogenic drug
(technical)that contains acid or has the essential characteristics of an acid; that has a pH of less than seven
that has a bitter sharp taste
(of a person's remarks)critical and unkind
"an acerbic tone piercing otherwise flowery prose"
"a barrage of acid comments"
"her acrid remarks make her many enemies"
"caustic jokes about political assassination, talk-show hosts and medical ethics"
"a sulfurous denunciation"
"a vitriolic critique"
"an acid reaction"
Rather an acid expression of countenance.
He had a certain acid humour.
出自： W. S. Maugham