(redirected from paroxysmal syndrome)
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1. A sudden outburst of emotion or action: a paroxysm of laughter.
a. A sudden attack, recurrence, or intensification of a disease.
b. A spasm or fit; a convulsion.

[Middle English paroxism, periodic attack of a disease, from Medieval Latin paroxysmus, from Greek paroxusmos, from paroxūnein, to stimulate, irritate : para-, intensive pref.; see para-1 + oxūnein, to goad, sharpen (from oxus, sharp; see ak- in Indo-European roots).]

par′ox·ys′mal (-ək-sĭz′məl) adj.
par′ox·ys′mal·ly adv.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.paroxysmal - accompanied by or of the nature of paroxysms


adj paroxístico
References in periodicals archive ?
Thus, 30 patients with psychomotor retardation, 23 subjects with a psycho-speech disorder, 28 children with emotional and behavioral disorders (EBD) and 29 examinees with paroxysmal syndrome were included into the groups.
MDA concentrations in peripheral circulation of infants with paroxysmal syndrome were higher than in subjects comprising control group by 3.
94 times was registered in infants with psychomotor retardation, similar increase being found in the group of patients with the paroxysmal syndrome.
Analysis of circulating IL-1 growth in patients with paroxysmal syndrome demonstrated unidirectional character of changes with accumulation of circulating S100 protein.

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