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Pronunciation varies by accent · noun
(organic chemistry) The acene consisting of nine fused benzene rings; any derivative of this compound.
Use nonacene when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Nonacene means (organic chemistry) The acene consisting of nine fused benzene rings; any derivative of this compound.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use nonacene where its definition matches the intended context.
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