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
The most recent eruption of this volcano was in 2005.
—
Andrea Thompson, Scientific American, 3 Apr. 2025
Mars contains volcanic plains formed by past eruptions and inactive shield volcanoes that are much more massive than Earth’s volcanoes; Olympus Mons, the largest volcano in the entire Solar System, stands at about 2.5 times the height of Mt. Everest.
—Jack Knudson, Discover Magazine, 1 Apr. 2025
But the Cumbre Vieja eruption could actually hold some of the answers to keeping bananas viable in the future, not just here but elsewhere.
—Colette Davidson, Christian Science Monitor, 28 Mar. 2025
Both had apparently assumed, prior to October 7th, that Hamas could be deterred by periodic eruptions of overwhelming violence, or else be bought off by cash from Qatar.
—Bernard Avishai, New Yorker, 28 Mar. 2025
See All Example Sentences for eruption
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Andrea Thompson, Scientific American, 3 Apr. 2025
Mars contains volcanic plains formed by past eruptions and inactive shield volcanoes that are much more massive than Earth’s volcanoes; Olympus Mons, the largest volcano in the entire Solar System, stands at about 2.5 times the height of Mt. Everest.
—Jack Knudson, Discover Magazine, 1 Apr. 2025
But the Cumbre Vieja eruption could actually hold some of the answers to keeping bananas viable in the future, not just here but elsewhere.
—Colette Davidson, Christian Science Monitor, 28 Mar. 2025
Both had apparently assumed, prior to October 7th, that Hamas could be deterred by periodic eruptions of overwhelming violence, or else be bought off by cash from Qatar.
—Bernard Avishai, New Yorker, 28 Mar. 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 23 Apr. 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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