One of the mysteries of the English language finally explained.
The abatement of a fever as indicated by a decrease in bodily temperature.
- ‘At the end of this phase defervescence occurs and the patient is usually afebrile for a day or two before the immune phase begins.’
- ‘Although they were subjectively better, there was a delayed defervescence of fever even up to 7 days, whereas in 1989, this occurred in 3 days.’
- ‘If major plasma leakage occurs, it usually develops 24 hours before to 24 hours after defervescence.’
- ‘During this time the vast majority of patients show clinical improvement, including defervescence, reduced cough, and weight gain.’
- ‘The recurrence of fever after an initial defervescence suggests a septic or nonseptic embolic event, a drug hypersensitivity reaction or the emergence of a resistant strain.’
Early 18th century: from Latin defervescent- ‘ceasing to boil’, from the verb defervescere.
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