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Pronunciation varies by accent · noun
(chemistry) A colourless crystalline substance obtained by reduction from phthalein, into which it is easily converted by oxidation..
Use phthalin when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Phthalin means (chemistry) A colourless crystalline substance obtained by reduction from phthalein, into which it is easily converted by oxidation..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use phthalin where its definition matches the intended context.
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