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Pronunciation varies by accent · noun
(organic chemistry) Any of five isomeric nitro derivatives of phenanthrene.
Use nitrophenanthrene when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Nitrophenanthrene means (organic chemistry) Any of five isomeric nitro derivatives of phenanthrene.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use nitrophenanthrene where its definition matches the intended context.
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