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单词 phenolphthalein
释义 phenolphthalein
 /fee'nawl thal"een, -ee in, -fthal"-, -nol-/, n. Chem., Pharm.
 a white, crystalline compound, C20H14O4, used as an indicator in acid-base titration and as a laxative.
 [1870-75; PHENOL + PHTHALEIN]
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