[hahy-per-pi-too-i-tuh-riz-uh m, -tyoo-]

Origin of hyperpituitarism

First recorded in 1905–10; hyper- + pituitar(y) + -ism
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for hyperpituitarism


  1. pathol overactivity of the pituitary gland, sometimes resulting in acromegaly or gigantism
Derived Formshyperpituitary, adjective
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

hyperpituitarism in Medicine


  1. Pathologically excessive production of anterior pituitary hormones, especially somatotropin.
  2. The condition resulting from an excess of pituitary hormones, such as gigantism in children and acromegaly in adults.
Related formshy′per•pi•tui•tar′y (-tĕr′ē) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.