• Phenolphthalein

    Pronunciation

    • IPA: /finÉ”lˈfθælin/

    Full definition of phenolphthalein

    Noun

    phenolphthalein

    (countable and uncountable; plural phenolphthaleins)
    1. (chemistry) A quinone derivative used as a pH indicator, and once used as a laxative
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