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[see-zher] /ˈsi ʒər/
the act or an instance of seizing.
the state of being seized.
a taking possession of an item, property, or person legally or by force.
a sudden attack, as of epilepsy or some other disease.
Origin of seizure
First recorded in 1475-85; seize + -ure
Related forms
nonseizure, noun
reseizure, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for seizure
Contemporary Examples
Historical Examples
  • Bohun was speechless for a moment, stricken dumb by a second seizure of fury.

    The Fortune Hunter Louis Joseph Vance
  • Lady Coryston lived for some eight months after this seizure.

    The Coryston Family Mrs. Humphry Ward
  • Then Miss Colton told him of her father's seizure and gave him the note for you.

    The Rise of Roscoe Paine Joseph C. Lincoln
  • This seizure isn't alarming and there is absolutely no danger of contagion.

    Mary-'Gusta Joseph C. Lincoln
  • But this first seizure was not so severe as to put a final arrest on his activities.

    The Scottish Reformation Alexander F. Mitchell
British Dictionary definitions for seizure


the act or an instance of seizing or the state of being seized
(pathol) a sudden manifestation or recurrence of a disease, such as an epileptic convulsion
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for seizure

"act of seizing," late 15c., from seize + -ure. Meaning "sudden attack of illness" is attested from 1779.

Online Etymology Dictionary, © 2010 Douglas Harper
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seizure in Medicine

seizure sei·zure (sē'zhər)
A sudden attack, spasm, or convulsion, as in epilepsy.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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seizure in Science
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. See also epilepsy.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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