insulin /ˈɪnsələn/ Brit /ˈɪnsjʊlən/ noun /ˈɪnsələn/ Brit /ˈɪnsjʊlən/
noun
Learner's definition of INSULIN
[noncount] medical
: a substance that your body makes and uses to turn sugar into energy胰岛素 ◊ If your body does not produce enough insulin, you will develop diabetes.如果你的身体不能分泌足够的胰岛素，你将患上糖尿病。