erup·tion | \i-ˈrəp-shən \

Definition of eruption 

1a : an act, process, or instance of erupting

b : the breaking out of a rash on the skin or mucous membrane

2 : a product of erupting (such as a skin rash)

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Synonyms & Antonyms for eruption


blast, blowup, burst, bursting, detonation, explosion, outburst



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Examples of eruption in a Sentence

a great eruption of glee as it suddenly dawned on her that she had won the eruption of the volcano Krakatoa was one of the most violent in global history

Recent Examples on the Web

Authorities halted operations at Ngurah Rai International Airport before dawn on Friday, concerned that windblown ash from new eruptions at Mount Agung could interfere with flights. Ben Otto, WSJ, "Bali Airport Reopens After Volcanic Ash Clears," 29 June 2018 Additionally, more than 600 homes have been burned down by the lava, and the monthlong eruption led to a loss of forest habitat for wildlife and native birds like the Hawaiian honeycreeper, as per USA Today. Temi Adebowale, Popular Mechanics, "Dramatic Video Shows What the Kilauea Volcano Has Done to Hawaii's Coastline," 15 June 2018 This eruption episode began in early May and has destroyed hundreds of homes on Hawaii's Big Island. Doyle Rice, USA TODAY, "It's 'raining' green crystals in Hawaii, thanks to Kilauea volcano eruption," 14 June 2018 In a statement released on June 2, the U.S. Geological Survey explained that lava from the eruption’s fissure 8 entered Green Lake and boiled its water away, sending a white plume high into the sky. James Rogers, Fox News, "Hawaii volcano: Kilauea lava boiled away Big Island's largest freshwater lake," 13 June 2018 Firefighter Cory Barr, a Madison area Realtor and owner of The Barr House in downtown Sun Prairie, died Tuesday after being severely injured in the eruption that leveled Barr's business and damaged surrounding buildings. Meg Jones, Milwaukee Journal Sentinel, "Sun Prairie firefighter killed by explosion that destroyed his own bar," 11 July 2018 The simultaneous observations could yield clues to how those eruptions are triggered. Dennis Normile, Science | AAAS, "New China space missions will watch for colliding black holes, solar blasts," 11 July 2018 Besides, where does Gingrich get off talking publicly about bimbo eruptions and all that? Neil Swidey,, "How Democrats would be better off if Bill Clinton had never been president," 10 July 2018 The eruption shaded the Earth, dropping global average temperatures by almost 1 degree Fahrenheit (0.3 degree Celsius) between 1991 and 1993. John Fialka, Scientific American, "The Best Way to Shade Earth," 5 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'eruption.' 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 eruption

1555, in the meaning defined at sense 1a

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Statistics for eruption

Last Updated

21 Oct 2018

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Time Traveler for eruption

The first known use of eruption was in 1555

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More Definitions for eruption


erup·tion | \i-ˈrəp-shən \

Kids Definition of eruption

1 : an instance of a volcano exploding

2 : the bursting out of material from a volcano

3 : the sudden occurrence or appearance of something


erup·tion | \i-ˈrəp-shən \

Medical Definition of eruption 

1 : an act, process, or instance of erupting the eruption of the tooth from the gum specifically : the breaking out of an exanthem or enanthem on the skin or mucous membrane (as in measles)

2 : something produced by an act or process of erupting: as

a : the condition of the skin or mucous membrane caused by erupting

b : one of the lesions (as a pustule) constituting this condition

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Comments on eruption

What made you want to look up eruption? Please tell us where you read or heard it (including the quote, if possible).


to reject or criticize sharply

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