Associations to the word «Phenolphthalein»

PHENOLPHTHALEIN, noun. (chemistry) A quinone derivative used as a pH indicator, and once used as a laxative

PHENOLPHTHALEIN, noun. A laxative used in many preparations under various trade names; also used as an acid-base indicator in titrations involving weak acids and strong bases because it is brilliant red at high alkalinity and colorless below pH 8.