[{"Bold_text": "noun", "List Items": ["quality of being virulent.", "Bacteriology.the relative ability of a microorganism to cause disease; degree of pathogenicity.the capability of a microorganism to cause disease.", "the relative ability of a microorganism to cause disease; degree of pathogenicity.", "the capability of a microorganism to cause disease.", "venomous hostility.", "intense sharpness of temper."]}]