paroxysm

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paroxysm

Pathol
a. a sudden attack or recurrence of a disease
b. any fit or convulsion
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Paroxysm

 

a sudden exacerbation of a disease. Examples of symptoms that can accompany paroxysms are attacks of pain in angina pectoris, palpitation in paroxysmal tachycardia, coughing in whooping cough, fever in malaria, and hemolysis in paroxysmal hemoglobinuria. The term “paroxysm” is also used to refer to a sudden outburst of emotion, as in “paroxysm of anger” and “paroxysm of despair.”

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

paroxysm

[′par·ək‚siz·əm]
(medicine)
A sudden attack, or the periodic crisis in the progress of a disease.
A spasm, convulsion, or seizure.
A burst of electrical activity during electroencephalography in the form of spikes, or spikes and waves, which indicates cerebral dysrhythmia or epileptic discharges.
(psychology)
A sudden, uncontrollable emotional outburst.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.