noun

• The study of the nature of disease and its causes, processes, development, and consequences; now usually and especially in the clinical and academic medicine subsenses defined below.
• (clinical medicine) The clinical biomedical specialty that provides microscopy and other laboratory services to clinicians (e.g., cytology, histology, cytopathology, histopathology, cytometry).
• (academic medicine) The academic biomedical specialty that advances the aspects of the biomedical sciences that allow for those clinical applications and their advancements over time.
• (biology, life sciences) Any of several interrelated scientific disciplines that advance the aspects of the life sciences that allow for such technological applications and their advancements over time.
• Pathosis: any deviation from a healthy or normal structure or function; abnormality; illness or malformation.