Exacerbation
Pronunciation : Ex*ac`er*ba"tion n.
Etymology : [Cf. F. exacerbation.]
Definition : 1. The act rendering more violent or bitter; the state of being exacerbated or intensified in violence or malignity; as, exacerbation of passion.
2. (Med.)
Defn: A periodical increase of violence in a disease, as in remittent or continious fever; an increased energy of diseased and painful action.
Source : Webster's Unabridged Dictionary, 1913