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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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


1. (Medicine) the abatement of a fever
2. (Medicine) the period during which this occurs
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(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.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Of the notified cases, 38,345 (76.3%) were reported by the fourth day of the disease, 6,009 (12%) during the defervescence phase (between the fourth and sixth day), when there is a greater risk of developing severe dengue, and 5,166 (10.2%) at a later stage.
Defervescence of fever occurs between the second and fifth day of treatment.
High levels of plasma dengue viral load during defervescence in patients with dengue hemorrhagic fever: Implications for pathogenesis.
He was initiated on injections of methylprednisolone (30 mg/kg/day) that led to prompt defervescence. He was given five pulse doses of methylprednisolone and was subsequently initiated on oral prednisolone (2 mg/kg/day).
Defervescence of fever within 48 hours, along with ST rapid test positivity in clinically suspected patients confirms ST diagnosis.
Defervescence: (a) shrewd (b) furniture (c) required (d) abatement of a fever 4.
Particularly, the authors of that study have shown high viral load in DHF patients in both acute and defervescence periods, suggesting that continued active viral replication or delay in clearance of viremia contributes to the pathogenesis of DHF.
Also, the time of defervescence of fever evoked by the intranigral injection of LPS coincided with the significant expression of IL-10, an antipyretic cytokine [65], in the substantia nigra.
Leukopenia appeared to persist for 5 to 7 days following fever defervescence in our hospitalized patients.
Once defervescence occurs, an erythematous morbilliform exanthem appears.