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Pronunciation varies by accent · noun
(organic chemistry) Any polymer or copolymer of acrylonitrile; they are mostly resins that are used to make fibers for fabrics.
Use polyacrylonitrile when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Polyacrylonitrile means (organic chemistry) Any polymer or copolymer of acrylonitrile; they are mostly resins that are used to make fibers for fabrics.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use polyacrylonitrile where its definition matches the intended context.
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