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Related to defervesced: pyrexial, pyrexic


The abatement of a fever.

[From Latin dēfervēscēns, dēfervēscent-, present participle of dēfervēscere, to stop boiling, cool off : dē-, de- + fervēscere, to grow hot, inchoative of fervēre, to be hot, boil; see bhreu- in Indo-European roots.]

de′fer·vesce′ (-vĕs′) v.
de′fer·ves′cent adj.


1. (Medicine) the abatement of a fever
2. (Medicine) the period during which this occurs


(ˌdi fərˈvɛs əns, ˌdɛf ər-)
abatement of fever.
[1865–70; < German Deferveszenz < Latin dēfervēsc(ent-)=dē- de- + fervēscere to begin to boil. See effervescent]
de`fer•ves′cent, adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.defervescence - abatement of a fever as indicated by a reduction in body temperature
abatement, hiatus, reprieve, respite, suspension - an interruption in the intensity or amount of something
References in periodicals archive ?
This included intravenous hydration, ibuprofen, and acetaminophen for 48 hours as an inpatient until his fever defervesced.
The patient eventually defervesced and experienced a notable alleviation of her headache and myalgias.
The patient defervesced after four days of intravenous piperacillin-tazobactam.
At the time of discharge on hospital day 5, the patient had defervesced and her inflammatory markers had decreased, with a C-reactive protein of 2.
She immediately defervesced after empirical Piperacilin plus Tazobactam and Gentamicin therapy (providing broad spectrum coverage against Gram positive and Gram negative bacteria, including Pseudomonas aeruginosa) was initiated, but on day 19 post induction the fever relapsed, without any other further clinical evidence of infection.