Associations to the word «Phenolphthalein»

Wiktionary

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

Dictionary definition

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.

Wise words

In words, as fashions, the same rule will hold; Alike fantastic, if too new, or old: Be not the first by whom the new are tried, Nor yet the last to lay the old aside.
Alexander Pope