paroxysm
/ˈperəkˌsɪzəm/
noun
plural
paroxysms
plural
paroxysms
Britannica Dictionary definition of PAROXYSM
[count]
1
medical
:
a sudden attack or increase of symptoms of a disease (such as pain, coughing, shaking, etc.) that often occurs again and again
—
usually + of
2
formal
:
a sudden strong feeling or expression of emotion that cannot be controlled