melanin
名词
UK/ˈmel.ə.nɪn/
US/ˈmel.ə.nɪn/
定义 melanin 名词
- Uncountable(不可数名词)
A dark brown pigment found in eyes, skin, hair, feathers, etc., that helps protect the skin from harmful sunlight.
黑色素
Exposure to sunlight increases melanin production in the skin.
暴露在阳光下会增加皮肤中黑色素的产生。
Melanin determines the color of hair and skin.
黑色素决定了头发和皮肤的颜色。
People with albinism have a lack of melanin in their bodies.
白化病患者体内缺乏黑色素。