叶黄素 Traditional form: 葉黃素 Pinyin (reading): yèhuángsù Definitions: lutein (biochemistry) Characters: 叶 - leaf, page; surname 黄 - yellow; surname 素 - plain; white; vegetarian; formerly; normally Traditional characters: 葉 - leaf, page; surname 黃 - yellow; surname 素 - plain; white; vegetarian; formerly; normally