\Symp`tom*a*tol"o*gy\, n. [Gr. ?, ?, symptom +
-logy: cf. F. symptomatologie.] (Med.)
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.