Black's Law Dictionary (2nd edition)dictionaries

Diagnosis

A medical term, meaning the discovery of the source of a patient’s illness or the determination of tlie nature of his disease from a study of its symptoms. Said to be little more than a guess enlighten-ed by experience. Swan v. Railroad Co., 79 Hun, 612, 29 N. Y. Supp. 337

Source: Black’s Law Dictionary 2nd Ed (1910)