English word insulin comes from Latin insula (island), and is so named after the islets of Langerhans, distinctive regions of tissue in the pancreas, which contain its endocrine cells, and where insulin is produced.
Insulin etymology history?
Insulin detailed word origin explanation
Island. (Here related to the islets of Langerhans, distinctive regions of tissue in the pancreas, where insulin is produced.
A polypeptide hormone that regulates carbohydrate metabolism.