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/ˈmɛlənɪn/ · noun
(biochemistry) Any of a group of naturally occurring dark pigments, especially the pigment found in skin, hair, fur, and feathers..
Generally, cephalopod ink includes melanin, enzymes related to melanin production, catecholamines, peptidoglycans, free amino acids and metals (Derby 2014) .
Use melanin when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Melanin means (biochemistry) Any of a group of naturally occurring dark pigments, especially the pigment found in skin, hair, fur, and feathers..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Generally, cephalopod ink includes melanin, enzymes related to melanin production, catecholamines, peptidoglycans, free amino acids and metals (Derby 2014) .
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