[ jahy-gan-tiz-uhm, ji-, jahy-gan-tiz-uhm ]
See synonyms for gigantism on
  1. 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 (def. 1).

  2. Biology. the nonpathological development of an animal or plant to an unusually large size.

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Origin of gigantism

First recorded in 1880–85; from Latin gigant-, stem of gigās; see origin at giant, -ism

Words Nearby gigantism Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use gigantism in a sentence

British Dictionary definitions for gigantism


/ (ˈdʒaɪɡænˌtɪzəm, dʒaɪˈɡæntɪzəm) /

  1. Also called: giantism excessive growth of the entire body, caused by over-production of growth hormone by the pituitary gland during childhood or adolescence: Compare acromegaly

  2. the state or quality of being gigantic

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