Medical Definition of Lysis
Lysis: Destruction. Hemolysis is the destruction of red blood cells with the release of hemoglobin; bacteriolysis is the destruction of bacteria; etc.
Lysis can also refer to the subsidence of one or more symptoms of an acute disease as, for example, the lysis of fever in pneumonia.Source: MedTerms™ Medical Dictionary
Last Editorial Review: 5/13/2016