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Pronunciation varies by accent · noun
(chemistry) Any compound of general formula REₙR having a chain of more than two chalcogen atoms..
Use polychalcogenide when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Polychalcogenide means (chemistry) Any compound of general formula REₙR having a chain of more than two chalcogen atoms..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use polychalcogenide where its definition matches the intended context.
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