eruption

noun erup·tion \ i-ˈrəp-shən \
|Updated on: 17 Jun 2018

Definition of eruption

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

  1. a great eruption of glee as it suddenly dawned on her that she had won

  2. the eruption of the volcano Krakatoa was one of the most violent in global history

Recent Examples of eruption from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'eruption.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of eruption

1555

in the meaning defined at sense 1a

See Words from the same year
NEW! Time Traveler

eruption Synonyms


ERUPTION Defined for Kids

eruption

noun erup·tion \ i-ˈrəp-shən \

Definition of eruption for Students

1 : an instance of a volcano exploding
2 : the bursting out of material from a volcano
3 : the sudden occurrence or appearance of something

Medical Dictionary

eruption

noun erup·tion \ i-ˈrəp-shən \

medical Definition of eruption

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


Seen and Heard

What made you want to look up eruption? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

meaningless speech or writing

Get Word of the Day daily email!

Test Your Vocabulary

Name More Food!

Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!