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Definition of eruption

eruption

/ɪˈrʌp.ʃən/
e · rup · tion

Plural:eruptions
•
Adjective:eruptive
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eruption Lexical Profile

eruption Game Scores & Validity

• noun

1

A sudden, violent ejection or bursting forth of material, such as lava, ash, steam, and gas from a volcano or geyser.

Example

"Geologists closely monitored the seismic activity prior to the volcanic eruption."


2

A sudden, intense outbreak of emotion, noise, conflict, or activity.

Example

"The referee's controversial decision caused an immediate eruption of protest from the crowd."


3

An outbreak of spots, blisters, or a rash on the skin or mucous membrane.

Example

"The dermatologist prescribed a topical cream to treat the sudden skin eruption."


4

The natural process by which a developing tooth emerges through the gums into the mouth.

Example

"The pediatric dentist examined the child to check the timeline of molar eruption."

Synonyms
View all synonyms for eruption
Antonyms
View all antonyms for eruption

Word Nuance & Usage

Do not confuse 'eruption' (a bursting out or forth, such as a volcano) with the near-homophone 'irruption' (a sudden, violent breaking in or invasion).

• Rhymes for eruption

Word Origin & Etymology

Borrowed in the early 15th century from Old French or directly from Latin 'eruptio', meaning 'a breaking out', derived from 'erumpere' ('to break out or burst forth'), combining 'ex-' ('out') and 'rumpere' ('to break').

Cite this Entry


Wordmom. (2026). Definition of Eruption. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/eruption
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