melanin

noun

mel·a·nin ˈme-lə-nən How to pronounce melanin (audio)

plural melanins

: any of various black, brown, reddish-brown, reddish-yellow, or yellow pigments of living organisms that in animals are typically produced in melanocytes by the oxidation of tyrosine followed by polymerization and are found especially in skin, hair, feathers, and eyes

Scientists know that all melanin molecules consist of long chains made mostly of derivatives of the amino acid tyrosine, but the individual units of the chain connect in random order.

Corinna Wu

Melanin performs an array of functions for modern organisms, such as camouflage, photo protection, and display.

Margaret Jones

especially : eumelanin

Tyrosinase enzymes are needed for the manufacture of melanin, the dark pigment that forms the color base of feathers.

Philip C. Whitford

Brown spots and birthmarks contain especially high concentrations of melanin, the substance that gives skin its color.

USA Today

Example Sentences

Recent Examples on the Web Specially designed by dermatologists of color for people with melanin-rich skin, this Melé peptide serum targets issues like hyperpigmentation and dark spots as well as excess oil and pore size.

Madison Yauger, Peoplemag, 13 Sep. 2022 Using the power of raw and organic shea butter, Buttah Skin's products target common skincare issues, such as dryness and hyperpigmentation, specifically for melanin-rich skin.

Jacorey Moon, Good Housekeeping, 29 Aug. 2022 Hemosiderin, a yellowish-brown iron-containing pigment, and melanin are thought to be responsible for skin darkening.

Carolyn Barber, Fortune, 31 Aug. 2022 While there is still no cure for psoriasis, there are plenty of treatment options to help keep the symptoms at bay, no matter how much melanin is in your skin.

Adele Jackson-gibson, SELF, 29 Aug. 2022 The circulation of false notions—such as Black people not needing sunscreen because melanin offers natural protection—results in skin issues that require professional care.

Brooklyn White, Essence, 16 Aug. 2022 This was a boundless album that wasn’t interested in being boxed in based on melanin or melody.

Tre Johnson, Rolling Stone, 13 Aug. 2022 Below, see the SPF products that wowed us, from Winnie Harlow’s impressive new line for melanin-rich skin to Coppertone’s beach-ready spray sunscreen.

Sarah Madaus, SELF, 19 July 2022 Darker hair types will get the most from this treatment as laser hair removal machines detect hair based on pigmentation or melanin within the hair follicle while leaving the surrounding skin untouched, says Dr. Green.

April Franzino, Good Housekeeping, 26 Apr. 2022 See More

Word History

Etymology

Greek melan-, stem of mélās "black, dark" + -in entry 1, after Italian melaina — more at melano-

Note: The term melaina was introduced in a study of squid ink by the Italian chemist Bartolomeo Bizio (1791-1862), "Ricerche chimiche sovra l'inchiostro della Seppia," Giornale di fisica, chimica, storia naturale, medicina ed arte, decade 2, tomo 8 (1825), p. 105. Bizio formed the word from Greek mélās "black" and aeí "always" because the substance he had isolated retained its color no matter what acid or other potent chemical it was exposed to ("Questo principio animal particolarissimo il fu chiamato così dal greco mélas, nero, ed aeì sempre, che vale materia sempre nera, conciossachè gli acidi, il cloro, e tutto che vi è di più potente, non bastano a mutarlo di colore.")

First Known Use

1843, in the meaning defined above

Medical Definition

melanin

noun

mel·a·nin ˈmel-ə-nən How to pronounce melanin (audio)

Scientists know that all melanin molecules consist of long chains made mostly of derivatives of the amino acid tyrosine, but the individual units of the chain connect in random order.

Corinna Wu, Science News

especially : eumelanin

Brown spots and birthmarks contain especially high concentrations of melanin, the substance that gives skin its color.

USA Today

Natural melanin surrounds and protects our cells not only by absorbing ultraviolet radiation, but also by scattering it and making it lose energy, rendering it harmless.

Rowann Gilman, Prevention

单词	melanin
释义	melanin noun mel·a·nin ˈme-lə-nən plural melanins : any of various black, brown, reddish-brown, reddish-yellow, or yellow pigments of living organisms that in animals are typically produced in melanocytes by the oxidation of tyrosine followed by polymerization and are found especially in skin, hair, feathers, and eyes Scientists know that all melanin molecules consist of long chains made mostly of derivatives of the amino acid tyrosine, but the individual units of the chain connect in random order. Corinna Wu Melanin performs an array of functions for modern organisms, such as camouflage, photo protection, and display. Margaret Jones especially : eumelanin Tyrosinase enzymes are needed for the manufacture of melanin, the dark pigment that forms the color base of feathers. Philip C. Whitford Brown spots and birthmarks contain especially high concentrations of melanin, the substance that gives skin its color. USA Today see also neuromelanin, pheomelanin Example Sentences Recent Examples on the Web Specially designed by dermatologists of color for people with melanin-rich skin, this Melé peptide serum targets issues like hyperpigmentation and dark spots as well as excess oil and pore size. Madison Yauger, Peoplemag, 13 Sep. 2022 Using the power of raw and organic shea butter, Buttah Skin's products target common skincare issues, such as dryness and hyperpigmentation, specifically for melanin-rich skin. Jacorey Moon, Good Housekeeping, 29 Aug. 2022 Hemosiderin, a yellowish-brown iron-containing pigment, and melanin are thought to be responsible for skin darkening. Carolyn Barber, Fortune, 31 Aug. 2022 While there is still no cure for psoriasis, there are plenty of treatment options to help keep the symptoms at bay, no matter how much melanin is in your skin. Adele Jackson-gibson, SELF, 29 Aug. 2022 The circulation of false notions—such as Black people not needing sunscreen because melanin offers natural protection—results in skin issues that require professional care. Brooklyn White, Essence, 16 Aug. 2022 This was a boundless album that wasn’t interested in being boxed in based on melanin or melody. Tre Johnson, Rolling Stone, 13 Aug. 2022 Below, see the SPF products that wowed us, from Winnie Harlow’s impressive new line for melanin-rich skin to Coppertone’s beach-ready spray sunscreen. Sarah Madaus, SELF, 19 July 2022 Darker hair types will get the most from this treatment as laser hair removal machines detect hair based on pigmentation or melanin within the hair follicle while leaving the surrounding skin untouched, says Dr. Green. April Franzino, Good Housekeeping, 26 Apr. 2022 See More Word History Etymology Greek melan-, stem of mélās "black, dark" + -in entry 1, after Italian melaina — more at melano- Note: The term melaina was introduced in a study of squid ink by the Italian chemist Bartolomeo Bizio (1791-1862), "Ricerche chimiche sovra l'inchiostro della Seppia," Giornale di fisica, chimica, storia naturale, medicina ed arte, decade 2, tomo 8 (1825), p. 105. Bizio formed the word from Greek mélās "black" and aeí "always" because the substance he had isolated retained its color no matter what acid or other potent chemical it was exposed to ("Questo principio animal particolarissimo il fu chiamato così dal greco mélas, nero, ed aeì sempre, che vale materia sempre nera, conciossachè gli acidi, il cloro, e tutto che vi è di più potente, non bastano a mutarlo di colore.") First Known Use 1843, in the meaning defined above Medical Definition melanin noun mel·a·nin ˈmel-ə-nən : any of various black, brown, reddish-brown, reddish-yellow, or yellow pigments of living organisms that in animals are typically produced in melanocytes by the oxidation of tyrosine followed by polymerization and are found especially in skin, hair, feathers, and eyes Scientists know that all melanin molecules consist of long chains made mostly of derivatives of the amino acid tyrosine, but the individual units of the chain connect in random order. Corinna Wu, Science News especially : eumelanin Brown spots and birthmarks contain especially high concentrations of melanin, the substance that gives skin its color. USA Today Natural melanin surrounds and protects our cells not only by absorbing ultraviolet radiation, but also by scattering it and making it lose energy, rendering it harmless. Rowann Gilman, Prevention see also neuromelanin, pheomelanin
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