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Pronunciation varies by accent · noun
(organic chemistry) Any of very many isomers of the aliphatic hydrocarbon having twenty-one carbon atoms, but especially n-heneicosane CH₃(CH₂)₁₉CH₃.
Use heneicosane when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Heneicosane means (organic chemistry) Any of very many isomers of the aliphatic hydrocarbon having twenty-one carbon atoms, but especially n-heneicosane CH₃(CH₂)₁₉CH₃.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use heneicosane where its definition matches the intended context.
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