/'ɪnsjʊlɪn; [US] -səl-; `ɪnsəlɪn/
n [U] substance (a hormone) produced in the pancreas, controlling the absorption of sugar by the body 胰岛素
*[attrib 作定语] People suffering from diabetes have to have insulin injections, because they cannot produce their own. 患糖尿病的人需注射胰岛素, 因为病人本身不能分泌胰岛素.

n[U]
[Date: 1900-2000; Language: Latin;Origin: insula ( INSULAR); because insulin is made by body organs called the "islets of Langerhans"]
a substance produced naturally by your body which allows sugar to be used for energy
　diabetic patients requiring insulin