Link Centre Dictionary

phenolphthalein

phe·nolpht·ha·lein

UK/ˌfiː.nɒlˈ(f)θa.liːn/ US/ˌfiː.nɒlˈ(f)θeɪ.liːn/ uncommon

noun

1.

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

Origin

From phenol + phthalein.

Related words

Broader terms

WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.