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Pronunciation varies by accent · noun
(organic chemistry) A compound made up from an odd number of methine groups bound together by alternating single and double bonds..
Use polymethine when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Polymethine means (organic chemistry) A compound made up from an odd number of methine groups bound together by alternating single and double bonds..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use polymethine where its definition matches the intended context.
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