(adj): vs. pleasant) -- (disagreeable to the senses, to the mind, or feelings
(adj): being sour to the taste
(adj): vs. sweet) -- (having a sharp biting taste
(adj): having the characteristics of an acid
(adj): vs. alkaline) (vs. amphoteric) -- (being or containing an acid; of a solution having an excess of hydrogen atoms (having a pH of less than 7)
(n): any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt
(n): (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
(n): street name for lysergic acid diethylamide
(n): a powerful hallucinogenic drug manufactured from lysergic acid
