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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 ?
During defervescence, thermoregulatory responses to elevated body temperature such as cutaneous vasodilation to transfer heat from the core to the periphery and evaporative heat loss via sweating or panting (Boulant, 1997) induce body water losses, inducing dehydration (Morimoto & Itoh, 1998).
The fever typically follows a "saddle-back" temperature course, peaking twice with a period of defervescence intervening.
The primary endpoint in both studies is clinical efficacy--signs and symptoms, while secondary endpoints are bacteriological efficacy, duration of intravenous (IV) therapy and time to defervescence (normal temperature).
Since patients with uncomplicated PID show a definite defervescence and a decrease in pelvic pain within 24-36 hours, these women need to be watched closely.
36) Doxycycline is highly effective and a clinical response with symptom relief and fever defervescence can be expected within 48 hours.
He required two more debridements but improved on a daily basis with defervescence and a sense of well-being.
The fever persisted from 4 to 14 days (average 5 days) with abrupt defervescence.
Another study showed that a Th-2 immune response occurs in patients with dengue around the time of defervescence (17) which again confirmed our in vivo and in vitro findings (6,7).
The tissue cultures had grown pansensitive Paeruginosa and coagulase-negative staphylococci, which were adequately covered by empiric treatment at the time of the otolaryngology consult and likely explain the patient's defervescence.
1), (6) Usually, if there is no defervescence within 48 hours, or if there are signs of a line infection such as itching at the insertion site, erythema or discharge, vancomycin therapy should be initiated if renal function is adequate.