vitamin A
noun [ U ] chemistry, biology uk/ˌvɪt.ə.mɪn ˈeɪ/ us/ˌvaɪ.t̬ə.mɪn ˈeɪ/
维生素A
a vitamin found in foods such as butter, egg yolk, milk, and fish oils, or produced in the body from the carotene in green vegetables with a lot of leaves or in orange vegetables. It is important for normal growth, healthy skin, and the ability to see well, especially at night.
Synonym: retinol