Definition
Pathologic means related to or caused by disease. It describes conditions that are the result of a physical or mental illness. It indicates something abnormal and unhealthy in a biological sense. It is often used in medical contexts to describe tissues or processes. For example, a pathologic fracture is caused by a disease weakening the bone. It's about understanding that the body isn't functioning as it should because of disease. It is similar to saying 'diseased', but usually more technical.