phenolsulfonephthalein

[ fee-nawl-suhl-fohn-thal-een, -ee-in, -fthal-, -nol- ]

/ ˌfi nɔlˌsʌl foʊnˈθæl in, -i ɪn, -ˈfθæl-, -nɒl- /

Save This Word!

noun Chemistry.

a bright to dark red crystalline compound, C19H14O5S, slightly soluble in water, alcohol, and acetone: used as an acid-base indicator and as a diagnostic reagent in medicine.

QUIZ

CAN YOU ANSWER THESE COMMON GRAMMAR DEBATES?

There are grammar debates that never die; and the ones highlighted in the questions in this quiz are sure to rile everyone up once again. Do you know how to answer the questions that cause some of the greatest grammar debates?

Question 1 of 7

Which sentence is correct?

His boss, whom he admires, is waiting to meet with him about the big project.

His boss, who he admires, is waiting to meet with him about the big project.

TAKE THE QUIZ TO FIND OUT

Also called phenol red .

Origin of phenolsulfonephthalein

phenol + sulfone + phthalein

Words nearby phenolsulfonephthalein

phenolic, phenolic resin, phenolion, phenology, phenolphthalein, phenolsulfonephthalein, phenom, phenomena, phenomenal, phenomenalism, phenomenalize