[jahy-uh n-tiz-uh m]

Origin of giantism

First recorded in 1630–40; giant + -ism Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for giantism

Historical Examples of giantism

  • For instance if the pituitary gland over-functioned we had Giantism.

  • Most cases of giantism, combined as they are with imperfect mentality, are due to disease of this gland.

    Disease and Its Causes

    William Thomas Councilman

  • The phenomenon of giantism of this nature occurs in alternate generations and then only in rare instances.

  • Hypertrophy of the gland is directly associated with certain diseases, such as giantism and acromegaly.

    The Mystery of Space

    Robert T. Browne

  • Indeed, as Marie has said, giantism is acromegaly occurring during the period of adolescence.


    Eugene S. Talbot

British Dictionary definitions for giantism


  1. another term for gigantism
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

giantism in Medicine


  1. The quality or condition of being great in size.
  2. gigantism
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.