Library / English Dictionary |
PHENOLPHTHALEIN
Pronunciation (US): | (GB): |
I. (noun)
Sense 1
Meaning:
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
Classified under:
Nouns denoting man-made objects
Hypernyms ("phenolphthalein" is a kind of...):
laxative (a mild cathartic)
acid-base indicator (an indicator that changes color on going from acidic to basic solutions)