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Pronunciation varies by accent · noun
(organic chemistry) An unsaturated aliphatic hydrocarbon that has 21 carbon atoms and two double bonds, but especially 3,6-heneicosadiene.
Use heneicosadiene when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Heneicosadiene means (organic chemistry) An unsaturated aliphatic hydrocarbon that has 21 carbon atoms and two double bonds, but especially 3,6-heneicosadiene.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use heneicosadiene where its definition matches the intended context.
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