glucagon

Noun

1.

glucagon - a hormone secreted by the pancreas; stimulates increases in blood sugar levels in the blood (thus opposing the action of insulin)

Pronunciation: (GLOO-kah-gahn)

a hormone produced by the alpha cells in the pancreas. It raises blood glucose. An injectable form of glucagon, available by prescription, may be used to treat severe hypoglycemia.

endocrine, hormone, internal secretion