'Lysis' definitions:

Definition of 'lysis'

(from WordNet)
noun
Recuperation in which the symptoms of an acute disease gradually subside
noun
(biochemistry) dissolution or destruction of cells such as blood cells or bacteria

Definition of 'Lysis'

From: GCIDE
  • Lysis \Ly"sis\ (l[imac]"s[i^]s), n. [NL., fr. Gr. ly`sis.] (Med.) The resolution or favorable termination of a disease, coming on gradually and not marked by abrupt change. [1913 Webster]
  • Note: It is usually contrasted with crisis, in which the improvement is sudden and marked; as, pneumonia ends by crisis, typhoid fever by lysis. [1913 Webster]