noun🔗Share머리카락과 손톱을 구성하는 단백질The protein of which hair and nails are composed."My hair is strong because it has a lot of keratin. "내 머리카락은 케라틴이 많아서 튼튼하다.physiologymaterialsubstancebodyanatomybiologyChat with AIVocabulary GamePractice Reading
