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Pronunciation varies by accent · noun
(organic chemistry) A phenethylisoquinoline alkaloid with IUPAC name (1S)-1-[2-(3-hydroxy-4,5-dimethoxyphenyl)ethyl]-6-methoxy-2-methyl-3,4-dihydro-1H-isoquinolin-7-ol.
Use autumnaline when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Autumnaline means (organic chemistry) A phenethylisoquinoline alkaloid with IUPAC name (1S)-1-[2-(3-hydroxy-4,5-dimethoxyphenyl)ethyl]-6-methoxy-2-methyl-3,4-dihydro-1H-isoquinolin-7-ol.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use autumnaline where its definition matches the intended context.
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