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Pronunciation varies by accent · noun
(organic chemistry) An unsaturated spiran containing at least one double bond in one of the rings.
Use spirene when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Spirene means (organic chemistry) An unsaturated spiran containing at least one double bond in one of the rings.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use spirene where its definition matches the intended context.
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