convulsion

noun

con·​vul·​sion kən-ˈvəl-shən How to pronounce convulsion (audio)
1
a
: an abnormal violent and involuntary contraction or series of contractions of the muscles
2
a
: a violent disturbance
b
: an uncontrolled fit : paroxysm
convulsionary adjective

Examples of convulsion in a Sentence

the Russian Revolution was one of the major convulsions of the 20th century
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Encephalitis may lead to convulsions and can cause deafness or leave a child with a lifelong intellectual disability, health officials warn. Sara Moniuszko, CBS News, 3 Mar. 2025 Among children with measles, about 1 in every 20 develops pneumonia, the CDC said, and about one in every 1,000 suffers swelling of the brain called encephalitis — which can lead to convulsions, deafness or intellectual disability. Laura Ungar, Chicago Tribune, 27 Feb. 2025 Symptoms of poisoning include upset stomach, drooling, loss of appetite, depression of the central nervous system, convulsions and irregular heartbeat. Ella Gonzales, Fort Worth Star-Telegram, 7 Feb. 2025 Unfortunately, the eVTOL air taxi sector is going through the same convulsions as the end of the dotcom bubble, with similar results. David Szondy, New Atlas, 2 Jan. 2025 See All Example Sentences for convulsion

Word History

First Known Use

1547, in the meaning defined at sense 1a

Time Traveler
The first known use of convulsion was in 1547

Browse Nearby Words

Cite this Entry

“Convulsion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/convulsion. Accessed 12 Mar. 2025.

Kids Definition

convulsion

noun
con·​vul·​sion kən-ˈvəl-shən How to pronounce convulsion (audio)
1
: an abnormal violent contraction or series of contractions of the muscles that is not under control of the will
2
: a violent disturbance

Medical Definition

convulsion

noun
con·​vul·​sion kən-ˈvəl-shən How to pronounce convulsion (audio)
1
: an abnormal violent and involuntary contraction or series of contractions of the muscles
often used in plural
a patient suffering from convulsions
2

More from Merriam-Webster on convulsion

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