phe·nol·sul·fon·phtha·lein
variants:
or chiefly British phenolsulphonphthalein \
-ˌsəl-fän-ˈthal-ē-ən, -ˈthal-ˌēn, -ˈthāl- 
\
\
Medical Definition of phenolsulfonphthalein
: a red crystalline compound C19H14O5S used chiefly as a test of kidney function and as an acid-base indicator
— called also phenol red
Learn More About phenolsulfonphthalein
Cite this Entry
“Phenolsulfonphthalein.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/phenolsulfonphthalein. Accessed 5 Jul. 2022.
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