pathological
🇺🇸
/ˌpæθəˈlɑːdʒɪkl/
🇬🇧
/ˌpæθəˈlɒdʒɪkl/
Extreme and not normal
He has a pathological obsession with cleanliness.
Related to disease or illness
The doctor diagnosed a pathological condition in the patient.
Related to the study of disease
She has a degree in pathological science.