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phenolphthalein

Noun CEFR C2
ˌfiː.nɒlˈ(f)θa.liːn

Definitions

A white or yellowish-white crystalline compound C₂₀H₁₄O₄ used in medicine as a laxative and in analysis as an indicator because its solution is brilliant red in alkalies and is decolorized by acids.

countable, uncountable

Equivalents

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CEFR level

C2
Mastery
This word is part of the CEFR C2 vocabulary — mastery level.
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