insulin
/ˈɪnsələn/
Brit
/ˈɪnsjʊlən/
noun
/ˈɪnsələn/
Brit
/ˈɪnsjʊlən/
noun
Britannica Dictionary definition of INSULIN
[noncount]
medical
:
a substance that your body makes and uses to turn sugar into energy
◊ If your body does not produce enough insulin, you will develop diabetes.