gi·​gan·​tism | \jī-ˈgan-ˌti-zəm, jə-;ˈjī-gən-\

Definition of gigantism 

2 : development to abnormally large size

3 : excessive vegetative growth often accompanied by the inhibiting of reproduction

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Examples of gigantism in a Sentence

the gigantism that is this newest ocean liner is impossible to describe

Recent Examples on the Web

Does Big Bird suffer from untreated gigantism, perhaps caused by a hormonal imbalance? The Editorial Board, WSJ, "Bert and Ernie, Political Puppets," 19 Sep. 2018 Get our daily newsletter Six cases of gigantism stand out most, with the firms becoming so big that governments intervened. The Economist, "History’s biggest firms," 5 July 2018 André had a prolific career in professional wrestling and came to be known for his size, caused by acromegaly, sometimes called gigantism, which made his limbs and organs grow too large. Kelly Lawler, USA TODAY, "5 things we learned from HBO's 'Andre the Giant' documentary," 10 Apr. 2018 The trouble comes with the new tower’s north and south walls, which reprise the generic gigantism of new skyscrapers that have been popping up like dandelions in China and assorted Persian Gulf city-states. Blair Kamin,, "Tribune Tower plans would energize an old landmark, but don't yet create a new one," 18 Apr. 2018 This suggests that gigantism evolved shortly after penguins lost the ability to fly and took to the water, but later re-emerged millions of years later. Mika Mckinnon, Smithsonian, "This Giant Penguin Was the Size of a Human," 13 Dec. 2017 The scientists assume that the penguins' gigantism was a result of the seabirds’ flightlessness. Doyle Rice, USA TODAY, "Big bird: Fossil of giant penguin discovered in New Zealand," 12 Dec. 2017 And it's believed that gigantism in penguins may have come earlier than previously thought, possibly shortly after the birds became flightless divers, according to the study. Jen Christensen, CNN, "Giant ancient penguin was human-size," 12 Dec. 2017 The only reason to fear corporate gigantism is if companies use their size and their power to jack up prices to achieve monopolistic lengths. Isaac Chotiner, Slate Magazine, "Why it’s time to panic about what Google and Facebook are doing to our lives.," 5 Oct. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'gigantism.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of gigantism

circa 1885, in the meaning defined at sense 1

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Statistics for gigantism

Last Updated

5 Dec 2018

Look-up Popularity

Time Traveler for gigantism

The first known use of gigantism was circa 1885

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More Definitions for gigantism


gi·​gan·​tism | \jī-ˈgan-ˌtiz-əm, jə-; ˈjī-gən- \

Medical Definition of gigantism 

: development to abnormally large size from excessive growth of the long bones accompanied by muscular weakness and sexual impotence and usually caused by hyperpituitarism before normal ossification is complete

called also macrosomia

— compare acromegaly

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More from Merriam-Webster on gigantism

Rhyming Dictionary: Words that rhyme with gigantism

Thesaurus: All synonyms and antonyms for gigantism Encyclopedia article about gigantism

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to enclose within walls

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