ˈin(t)sələ̇n sometimes ˈin(t)slə̇n or ˈin(t)syəl- or ˈinshə- noun
( -s )
Etymology: New Latin insula + English -in
: a protein pancreatic hormone secreted by the islets of Langerhans that is essential especially for the metabolism of carbohydrates, that is obtained commercially in crystalline form usually from beef or pork pancreas, and that is used in the treatment and control of diabetes mellitus