glycogen
noun [ U ] biology, chemistry specialized uk/ˈɡlaɪ.kəʊ.dʒən/ us/ˈɡlaɪ.koʊ.dʒən/
肝糖（存在于动物的肝脏和肌肉中，贮藏碳水化合物，控制血糖浓度）
a substance found in the liver and muscles that stores carbohydrate and is important in controlling sugar levels in the blood