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Pronunciation varies by accent · noun
(organic chemistry, especially in combination) Any pentafluoro derivative of an ethyl group.
Use pentafluoroethyl when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Pentafluoroethyl means (organic chemistry, especially in combination) Any pentafluoro derivative of an ethyl group.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use pentafluoroethyl where its definition matches the intended context.
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