Definition of melanin in English:

melanin

noun ˈmɛlənɪnˈmɛlənən

mass noun

A dark brown to black pigment occurring in the hair, skin, and iris of the eye in people and animals. It is responsible for tanning of skin exposed to sunlight.
Example sentencesExamples
- Melanotan works by boosting melanin, the skin pigment that makes us brown and protects us against skin cancer.
- One theory focuses on the fact that people with red hair have a different type of melanin (a skin pigment) than people with dark hair.
- The melanosomes convert tyrosine to melanin, giving skin its color.
- The body normally converts the amino acid tyrosine into the pigment melanin.
- When the skin is exposed to sunshine, it produces a brown pigment called melanin.

Origin

Mid 19th century: from Greek melas, melan- 'black' + -in¹.

Definition of melanin in US English:

melanin

nounˈmɛlənənˈmelənən

A dark brown to black pigment occurring in the hair, skin, and iris of the eye in people and animals. It is responsible for tanning of skin exposed to sunlight.
Example sentencesExamples
- When the skin is exposed to sunshine, it produces a brown pigment called melanin.
- The melanosomes convert tyrosine to melanin, giving skin its color.
- The body normally converts the amino acid tyrosine into the pigment melanin.
- One theory focuses on the fact that people with red hair have a different type of melanin (a skin pigment) than people with dark hair.
- Melanotan works by boosting melanin, the skin pigment that makes us brown and protects us against skin cancer.

Origin

Mid 19th century: from Greek melas, melan- ‘black’ + -in.

单词	melanin
释义	Definition of melanin in English: melanin noun ˈmɛlənɪnˈmɛlənən mass noun A dark brown to black pigment occurring in the hair, skin, and iris of the eye in people and animals. It is responsible for tanning of skin exposed to sunlight. Example sentencesExamples Melanotan works by boosting melanin, the skin pigment that makes us brown and protects us against skin cancer. One theory focuses on the fact that people with red hair have a different type of melanin (a skin pigment) than people with dark hair. The melanosomes convert tyrosine to melanin, giving skin its color. The body normally converts the amino acid tyrosine into the pigment melanin. When the skin is exposed to sunshine, it produces a brown pigment called melanin. Origin Mid 19th century: from Greek melas, melan- 'black' + -in¹. Definition of melanin in US English: melanin nounˈmɛlənənˈmelənən A dark brown to black pigment occurring in the hair, skin, and iris of the eye in people and animals. It is responsible for tanning of skin exposed to sunlight. Example sentencesExamples When the skin is exposed to sunshine, it produces a brown pigment called melanin. The melanosomes convert tyrosine to melanin, giving skin its color. The body normally converts the amino acid tyrosine into the pigment melanin. One theory focuses on the fact that people with red hair have a different type of melanin (a skin pigment) than people with dark hair. Melanotan works by boosting melanin, the skin pigment that makes us brown and protects us against skin cancer. Origin Mid 19th century: from Greek melas, melan- ‘black’ + -in.
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