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Pronunciation varies by accent · noun
(organic chemistry) Any tetrachloro derivative of phenolphthalein, but especially 4,5,6,7-tetrachlorophenolphthalein.
Use tetrachlorophenolphthalein when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Tetrachlorophenolphthalein means (organic chemistry) Any tetrachloro derivative of phenolphthalein, but especially 4,5,6,7-tetrachlorophenolphthalein.
Common synonyms include phenoltetrachlorophthalein.
The opposite depends on the specific sense.
Use tetrachlorophenolphthalein where its definition matches the intended context.
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