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Definition

Pathology is the study of disease.

Etymology. "science of diseases," 1611, from Fr. pathologie, from Mod.L. pathologia, from Gk. pathologikos "treating of disease," from pathos "suffering" (see pathos) + -logia "study," from logos "word." Pathologist first recorded 1650. Pathological "pertaining to disease" formed inEng. 1688; sense of "worthy to be a subject of pathology, morbid, excessive" (e.g. pathological liar) is attested from 1845.