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
Our study exemplifies how seismology combined with rock physics models and petrological analysis can resolve the detailed structure and composition of a volcanic system, critical for assessing eruption hazard.
—
Trevor Hughes, USA Today, 1 May 2025
Such isotopic spikes have revealed what may be the most powerful solar eruption in relatively recent history, an event that occurred in 7176 B.C.E. Scientists argued at first about the cause of these spikes; the sun’s activity didn’t seem powerful enough to create the amounts of isotopes seen.
—Phil Plait, Scientific American, 1 May 2025
Leonard has been a solid scorer throughout this series, including his 39-point eruption in Game 2.
—Tyler Everett, MSNBC Newsweek, 1 May 2025
However, this indication is also why researchers believe that the eruption risk is low.
—Monica Cull, Discover Magazine, 28 Apr. 2025
See All Example Sentences for eruption
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Trevor Hughes, USA Today, 1 May 2025
Such isotopic spikes have revealed what may be the most powerful solar eruption in relatively recent history, an event that occurred in 7176 B.C.E. Scientists argued at first about the cause of these spikes; the sun’s activity didn’t seem powerful enough to create the amounts of isotopes seen.
—Phil Plait, Scientific American, 1 May 2025
Leonard has been a solid scorer throughout this series, including his 39-point eruption in Game 2.
—Tyler Everett, MSNBC Newsweek, 1 May 2025
However, this indication is also why researchers believe that the eruption risk is low.
—Monica Cull, Discover Magazine, 28 Apr. 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 10 May. 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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