eruption
noun
erup·tion
i-ˈrəp-shən 
1
a
: 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)
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
No deaths have been reported from Hayli Gubbi's eruption, but villages located in the remote district of Afdera became caked in ash, impacting both homes and livestock, AP reports.
—
Julian Dossett, Space.com, 29 Nov. 2025
The eruption prompted evacuations as villages were covered with falling ash, and clouds of smoke and lava gas, Indonesia’s Geology Agency said in a statement.
—Hollie Silverman, MSNBC Newsweek, 29 Nov. 2025
But while Boyd finished with 15 points, he was held seven points below his season average — and 21 fewer than his eruption in the Badgers’ win Thursday over Providence.
—Kyle Kensing, San Diego Union-Tribune, 29 Nov. 2025
Rest assured, seeing the juxtaposition of the fiery eruption against a white backdrop is well worth the extra effort.
—Evie Carrick, Travel + Leisure, 27 Nov. 2025
See All Example Sentences for eruption
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Julian Dossett, Space.com, 29 Nov. 2025
The eruption prompted evacuations as villages were covered with falling ash, and clouds of smoke and lava gas, Indonesia’s Geology Agency said in a statement.
—Hollie Silverman, MSNBC Newsweek, 29 Nov. 2025
But while Boyd finished with 15 points, he was held seven points below his season average — and 21 fewer than his eruption in the Badgers’ win Thursday over Providence.
—Kyle Kensing, San Diego Union-Tribune, 29 Nov. 2025
Rest assured, seeing the juxtaposition of the fiery eruption against a white backdrop is well worth the extra effort.
—Evie Carrick, Travel + Leisure, 27 Nov. 2025
See All Example Sentences for eruption
Cite this Entry
“Eruption.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/eruption. Accessed 2 Dec. 2025.
Copy CitationKids Definition
eruption
noun
erup·tion
i-ˈrəp-shən
1
: an act, process, or instance of erupting
2
: a product (as a skin rash) of erupting
Medical Definition
eruption
noun
erup·tion
i-ˈrəp-shən
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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