Main Entry: islet of Lang·er·hans

Pronunciation: \-ˈläŋ-ər-ˌhänz, -ˌhän(t)s\

Etymology: Paul Langerhans †1888 German physician

Date: 1896

: any of the groups of small slightly granular endocrine cells that form anastomosing trabeculae among the tubules and alveoli of the pancreas and secrete insulin and glucagon