noun🔗Share皮脂A thick oily substance, secreted by the sebaceous glands of the skin, that consists of fat, keratin and cellular debris."The teenager's skin was oily because of excess sebum. "過剰な皮脂のせいで、そのティーンエイジャーの肌は脂っぽかった。bodyphysiologysubstanceanatomybiologymedicinechemistryChat with AIVocabulary GamePractice Reading
