neuromelanin

noun
neu·​ro·​mel·​a·​nin | \ ˌnu̇r-ō-ˈme-lə-nən How to pronounce neuromelanin (audio) , ˌnyu̇r- \
plural neuromelanins

Definition of neuromelanin

: a dark melanin pigment found especially in some dopaminergic neurons of the human substantia nigra Substantia nigra means, literally, "black substance"; researchers now understand that these cells gain their dark coloration from the oxidation of dopamine to form the black pigment neuromelanin.— C. Warren Olanow and Ted L. Rothstein — compare eumelanin, pheomelanin

First Known Use of neuromelanin

1957, in the meaning defined above

History and Etymology for neuromelanin

neuro- + melanin

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The first known use of neuromelanin was in 1957

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Cite this Entry

“Neuromelanin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/neuromelanin. Accessed 25 May. 2022.

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More Definitions for neuromelanin

neuromelanin

noun
neu·​ro·​mel·​a·​nin | \ -ˈmel-ə-nən How to pronounce neuromelanin (audio) \

Medical Definition of neuromelanin

: a dark melanin pigment found especially in some dopaminergic neurons of the human substantia nigra … in the brain, tyrosine is converted into dopamine, a neurotransmitter, which in turn gives rise to neuromelanin.— Christopher Wills, Discover Substantia nigra means, literally, "black substance"; researchers now understand that these cells gain their dark coloration from the oxidation of dopamine to form the black pigment neuromelanin.— C. Warren Olanow and Ted L. Rothstein, American Scientist

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