phenolsulfonphthalein
noun
phe·nol·sul·fon·phtha·lein
variants
or chiefly British phenolsulphonphthalein
: a red crystalline compound C19H14O5S used chiefly as a test of kidney function and as an acid-base indicator
called also phenol red
Cite this Entry
“Phenolsulfonphthalein.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/phenolsulfonphthalein. Accessed 26 Jul. 2025.
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