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
Geologists believe that the primary trigger was climatic and ocean changes related to large-scale volcanic eruptions in what is today Siberia, Russia.
—
Rachael O'Connor, MSNBC Newsweek, 17 Oct. 2025
Dozens of people living in villages nearest to the volcano were evacuated after the eruptions, according to Avelina Manggota Hallan, an official at the local disaster mitigation agency.
—Reuters, NBC news, 15 Oct. 2025
Miners argue increased subjection to the dust has led to an eruption of black lung, an incurable disease associated with inhaling the particles.
—Sasha Rogelberg, Fortune, 14 Oct. 2025
The result is a torus of gas, dust and other debris stretching around Jupiter, constantly replenished by Io’s incessant eruptions.
—Nola Taylor Tillman, Scientific American, 13 Oct. 2025
See All Example Sentences for eruption
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Rachael O'Connor, MSNBC Newsweek, 17 Oct. 2025
Dozens of people living in villages nearest to the volcano were evacuated after the eruptions, according to Avelina Manggota Hallan, an official at the local disaster mitigation agency.
—Reuters, NBC news, 15 Oct. 2025
Miners argue increased subjection to the dust has led to an eruption of black lung, an incurable disease associated with inhaling the particles.
—Sasha Rogelberg, Fortune, 14 Oct. 2025
The result is a torus of gas, dust and other debris stretching around Jupiter, constantly replenished by Io’s incessant eruptions.
—Nola Taylor Tillman, Scientific American, 13 Oct. 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 22 Oct. 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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