defervescence
Concise Oxford English Dictionary © 2008 Oxford University Press:
defervescence /ˌdɪfəˈvɛs(ə)ns/
▶noun Medicine the abatement of a fever.
– derivatives
defervesce verb.
defervesce verb.
– origin C18: from L. defervescent-, defervescere ‘to cease to boil’.
'defervescence' also found in these Oxford entries:

