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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 ?
By hospital day 3, she defervesced and remained afebrile with stable vital signs and no further seizure activity throughout the rest of her hospitalization.
He was treated with vancomycin for 8 days and meropenem for 17 days, after which he defervesced. Nevertheless, fevers recurred on hospital day 20 and shortly after; blood cultures returned with gram-negative rods at which point vancomycin and cefepime were reinitiated.
This included intravenous hydration, ibuprofen, and acetaminophen for 48 hours as an inpatient until his fever defervesced. He was discharged in improved condition.
The patient eventually defervesced and experienced a notable alleviation of her headache and myalgias.