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Pronunciation varies by accent · noun
(chemistry) A polymer (such as polyethylene) made by the polymerization of an olefin..
Use polyolefin when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Polyolefin means (chemistry) A polymer (such as polyethylene) made by the polymerization of an olefin..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use polyolefin where its definition matches the intended context.
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