Defn: Specially or decisively characteristic of a disease; indicating with certainty a disease; as, a pathognomonic symptom. The true pathognomonic sign of love jealousy. Arbuthnot.
PATHOGNOMY
Pa*thog"no*my, n. Etym: [Gr.
Defn: Expression of the passions; the science of the signs by which human passions are indicated.
PATHOLOGIC; PATHOLOGICAL
Path`o*log"ic, Path`o*log"ic*al, a. Etym: [Gr. pathologique.]
Defn: Of or pertaining to pathology.
— Path`o*log"ic*al*ly, adv.
PATHOLOGIST
Pa*thol"o*gist, n. Etym: [Cf. F. pathologiste.]
Defn: One skilled in pathology; an investigator in pathology; as, the pathologist of a hospital, whose duty it is to determine the causes of the diseases.
PATHOLOGY Pa*thol"o*gy, n.; pl. Pathologies. Etym: [Gr. -logy: cf. F. pathologie.] (Med.)
Defn: The science which treats of diseases, their nature, causes, progress, symptoms, etc.
Note: Pathology is general or special, according as it treats of disease or morbid processes in general, or of particular diseases; it is also subdivided into internal and external, or medical and surgical pathology. Its departments are nosology, ætiology, morbid anatomy, symptomatology, and therapeutics, which treat respectively of the classification, causation, organic changes, symptoms, and cure of diseases. Celluar pathology, a theory that gives prominence to the vital action of cells in the healthy and diseased function of the body. Virchow.