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/ˈlɪɡ.nɪn/ · noun
(organic chemistry) A complex non-carbohydrate aromatic polymer present in all wood..
Use lignin when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Lignin means (organic chemistry) A complex non-carbohydrate aromatic polymer present in all wood..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use lignin where its definition matches the intended context.
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