noun
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the act or an instance of seizing or the state of being seized
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pathol a sudden manifestation or recurrence of a disease, such as an epileptic convulsion
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A sudden episode of transient neurologic symptoms such as involuntary muscle movements, sensory disturbances and altered consciousness. A seizure is caused by abnormal electrical activity in the brain, which is often diagnosed on an electroencephalogram.
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See also epilepsy
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of seizure
Explanation
A seizure is the act of taking by legal process or force, such as the seizure of evidence found at the scene of a crime. A seizure is the act of seizing — a forceful action in which an object or person is suddenly taken over, grabbed, removed, or overwhelmed. It's not something you want to happen. Criminals may think the seizure of a wealthy person can bring them a fortune in ransom money. Another kind of seizure is the kind caused by a misfire of electrons in the brain, causing a loss of control of the body. It too is an unwanted taking over by force.
Vocabulary lists containing seizure
The Bill of Rights
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The Absolutely True Diary of a Part-Time Indian
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Out of My Mind
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
The officials who had lodged the protest had been on a business trip at the time of the seizure to push for the safeguard of Japanese companies' assets, he added.
From Barron's ● Nov. 6, 2026
The seizure was not connected to Mogambi's individual case.
From BBC ● Oct. 30, 2026
It called for more effective cooperation on countering money laundering and terrorist financing, and for officials to send more requests to identify and seek the seizure of criminal assets abroad.
From Barron's ● Oct. 30, 2026
Logan attempts to medicate him so that he and Caliban can rest, but Xavier fights him off, falls out of his wheelchair and has a telepathic seizure that begins to affect everyone around him.
From Los Angeles Times ● Oct. 29, 2026
He whirled back to Yossarian and, before he could speak, sneezed thunderously six times, staggering sideways on rubbery legs in the intervals and raising his elbows ineffectively to fend each seizure off.
From "Catch-22" by Joseph Heller
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There may also be risks of seizures and side effects from treatments.
From MarketWatch ● Nov. 4, 2026
At Georgia Tech, he studied how AI could solve healthcare problems and he won national awards, including a 2023 honor for a novel framework that detects seizures in epileptic patients.
From The Wall Street Journal ● Nov. 1, 2026
People with the disorder may develop seizures, lose previously acquired developmental abilities, experience increasing difficulty walking or moving, and struggle with speaking or swallowing.
From Science Daily ● Oct. 13, 2026
"During the winter, my son suffers from epilepsy seizures because of the cold. It's very hard sometimes to keep him dry and warm," she said.
From BBC ● Oct. 8, 2026
The vast majority of my attacks are called absence seizures.
From "Burning Blue" by Paul Griffin
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Get a wordDefinitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.