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pigments. Any normal or abnormal colouring matter in plants, animals, or micro-organisms. Please contribute to this project, if you have more information about this term feel free to edit this page. This page was last modified on 3 October 2005, at 21:16.This page has been accessed 8,294 times.
melanin melÂ·aÂ·nin (mÄl'É-nÄ­n) n. Any of a group of naturally occurring dark pigments composed of granules of highly irregular polymers that usually contain nitrogen or sulfur atoms, especially the pigment found in skin, hair, fur, and feathers.