Answer: pathology

AnswerCrossword Clue
pathologythe study of diseases or abnormalities or, more particularly, of the changes in tissues or organs that are associated with disease
pathologyMental, social, or linguistic abnormality or malfunction
pathologyThe science of the causes and effects of diseases, esp. the branch of medicine that deals with the laboratory examination of samples of body tissue for diagnostic or forensic purposes
pathologyA pathological condition
pathologyPathological features considered collectively; the typical behavior of a disease