What does it mean to be pathogenic? disease-causing. What does it mean that a microorganism is non-pathogenic? be considered 'living.' Thus ...

Pathogenic means to be able to cause or produce disease. Pathogenic is often referred to as pathogenic bacteria which is bacteria that causes disease.

a pathogen is any organism which can harm the human body, this includes pathogenic bacteria, fungi, protozoa, parasites, etc.