Pathogenicity is the potential capacity of certain species of microbes or viruses to cause a disease. Pathogenicity is characterized by complex pathogenic properties which evolve during their struggle for existence. Pathogens are characterized by specific actions. Each species is able to give rise to different infectious processes. It is often use...
The capability of a pathogen to cause disease. 
<microbiology> The ability of a parasite to inflict damage on the host. ... (09 Oct 1997) ... 
(path″o-jә-nis´ĭ-te) the quality of producing or the ability to produce pathologic changes or disease.
the capability of a pathogen to cause disease. 
Ability of a pathogen to produce disease, i.e. to be pathogenic.
Type: Term Pronunciation: path′ō-jĕ-nis′i-tē Definitions: 1. The condition or quality of being pathogenic, or the ability to cause disease.
The relative ability of an organism to cause disease.
pathogenicity 1. Capacity of something to cause disease or the ability to produce pathologic changes. 2. The capacity of a micro-organism to produce disease.
ability of a microbial agent to cause disease
the degree to which an organism is able to cause a disease
The ability of a pathogen to cause disease.