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pa·thol·o·gy

pathology

pronunciation:
p tha l ji
part of speech: noun
inflections: pathologies
definition 1: the scientific study of the causes, nature, and results of bodily disease.
Louis Pasteur, with his investigations into anthrax and rabies, broadened scientific understanding of pathology.
definition 2: a physical or mental abnormality that is caused by disease or disorder.
derivation: pathologist (n.)