• synonyms


[hahy-per-in-suh-li-niz-uh m, -ins-yuh-]
noun Pathology.
  1. excessive insulin in the blood, resulting in hypoglycemia.
Show More

Origin of hyperinsulinism

First recorded in 1920–25; hyper- + insulin + -ism
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for hyperinsulinism


  1. pathol an excessive amount of insulin in the blood, producing hypoglycaemia, caused by oversecretion of insulin by the pancreas or overdosage of insulin in treating diabetesSee insulin reaction
Show More
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

hyperinsulinism in Medicine


  1. A condition marked by excessive secretion of insulin by the islets of Langerhans, resulting in hypoglycemia; the symptoms are similar to those of insulin shock, though more chronic in character.
Show More
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.