symptomatology
Symp`tom*a*tol"o*gy, n. Etym: [Gr. -logy: cf. F. symptomatologie.] (Med.) Defn: The doctrine of symptoms; that part of the science of medicine which treats of the symptoms of diseases; semeiology. Note: It includes diagnosis, or the determination of the disease from its symptoms; and prognosis, or the determination of its probable course and event.