melanin

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noun mel·a·nin \ˈme-lə-nən\

Definition of melanin

  1. :  any of various black, dark brown, reddish-brown, or yellow pigments of animal or plant structures (as skin or hair)

1843

First Known Use of melanin

1843


MELANIN Defined for English Language Learners

melanin

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noun mel·a·nin \ˈme-lə-nən\

Definition of melanin for English Language Learners

  • : a dark brown or black substance that is a natural part of people's skin, hair, and eyes


Medical Dictionary

melanin

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noun mel·a·nin \ˈmel-ə-nən\

Medical Definition of melanin

  1. :  any of various black, dark brown, reddish brown, or yellow pigments of animal or plant structures (as skin, hair, the choroid, or a raw potato when exposed to air); especially :  any of numerous animal pigments that are essentially polymeric derivatives of indole formed by enzymatic modification of tyrosine


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