[jahy-gan-tiz-uhm, ji-, jahy-gan-tiz-uhm]
noun Pathology.
abnormally great development in size or stature of the whole body or of parts of the body, most often due to dysfunction of the pituitary gland.
Compare hypertrophy.

1880–85; < Latin gigant- giant + -ism Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
gigantism (ˈdʒaɪɡænˌtɪzəm, dʒaɪˈɡæntɪzəm)
1.  Compare acromegaly Also called: giantism excessive growth of the entire body, caused by over-production of growth hormone by the pituitary gland during childhood or adolescence
2.  the state or quality of being gigantic

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

gigantism gi·gan·tism (jī-gān'tĭz'əm)

  1. The quality or state of being gigantic; abnormally large size.

  2. Excessive growth of the body or any of its parts, especially as a result of oversecretion of the growth hormone by the pituitary gland. Also called giantism.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
Apparently, early butchering gravitated toward a form of gigantism.
But in sumo wrestling and banking, gigantism is the order of the day.
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