Dictionary > Nonhemolysis

Nonhemolysis

Definition
noun
The lack of hemolytic activity in the area surrounding a bacterial colony on blood agar.
Supplement
The hemolytic reactions of streptococci on blood agar plates can be used for their preliminary identification and classification. For instance, Streptococcus pneumoniae forms alpha hemolysis, Streptococcus pyogenes forms beta hemolysis, and Enterococcus faecalis displays nonhemolysis (or gamma hemolysis) on blood agar plates.
Synonym: gamma hemolysis

Compare: alpha hemolysis, beta hemolysis