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gigantism

American  
[jahy-gan-tiz-uhm, ji-, jahy-gan-tiz-uhm] / dʒaɪˈgæn tɪz əm, dʒɪ-, ˈdʒaɪ gænˌtɪz əm /

noun

  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.

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


gigantism British  
/ ˈdʒaɪɡænˌtɪzəm, dʒaɪˈɡæntɪzəm /

noun

  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

Etymology

Origin of gigantism

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

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Island gigantism occurs when animals isolated on islands become much larger than related species on the mainland.

From Science Daily May 28, 2026

An industry less prone to gigantism might have avoided those horrors.

From New York Times Apr. 11, 2024

The ability to continue growing throughout the year may have been a key innovation, sustained by great migrations, that facilitated the emergence of gigantism in early sauropods.

From Scientific American Aug. 15, 2023

Knowing that people with gigantism often died young, Hunter offered to buy his corpse.

From Washington Post Jan. 24, 2023

Like the buildup of super-tall skyscrapers along the Asian rim in our own time, architectural gigantism followed the accumulation of sufficient money and political confidence to make such gestures.

From "Circumference" by Nicholas Nicastro

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