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Pronunciation varies by accent · noun
(organic chemistry) One of several colour-producing glycosides found in madder root..
Use rubian when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Rubian means (organic chemistry) One of several colour-producing glycosides found in madder root..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use rubian where its definition matches the intended context.
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