variants: or


Definition of phenolsulfonephthalein

  1. :  a red crystalline compound C19H14O5S formed by condensation of the anhydride of ortho-sulfobenzoic acid and phenol and used chiefly as a test of kidney function and as an acid-base indicator —called also phenol red

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Origin and Etymology of phenolsulfonephthalein

International Scientific Vocabulary phenol + sulfonephthalein or sulfonphthalein

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a rounded knoll or a ridge of ice

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