noun
insulin
IN-suh-lin/ˈɪnsəlɪn/
A hormone that regulates blood sugar, also used as medicine to treat diabetes.
The diagram shows insulin's role in regulating blood sugar.

Etymology
The “island” refers to the islets of Langerhans in the pancreas, which secrete insulin. The hormone’s name thus points to its source in the body rather than its blood-sugar-regulating function.
In context
when your body does not produce enough insulin glucose builds up in your blood leading to high blood sugar levels
More examples
- The body produces insulin.
- The research examined insulin secretion.
- The clinic stored the prescribed insulin properly.
Forms
insulin