Webster's Revised Unabridged Dictionary · 1913

Diagnosis

Diagnosis , noun

[New Latin, from Greek dia`gnwsis, from diagignw`skw to distinguish; dia` through, asunder + gignw`skw to know. See Know.]

1.
(Medicine) The art or act of recognizing the presence of disease from its signs or symptoms, and deciding as to its character; also, the decision arrived at.
2.
Hence, the act or process of identifying the nature or cause of some phenomenon, especially the abnormal behavior of an animal or artifactual device; as, diagnosis of a vibration in an automobile; diagnosis of the failure of a sales campaign; diagnosis of a computer malfunction.
3.
Scientific determination of any kind; the concise description of characterization of a species.
4.
Critical perception or scrutiny; judgment based on such scrutiny; esp., perception of, or judgment concerning, motives and character.
The quick eye for effects, the clear diagnosis of men's minds, and the love of epigram. — Compton Reade
My diagnosis of his character proved correct. — J. Payn
Collocations (1)
Differential diagnosis (Medicine) , the determination of the distinguishing characteristics as between two similar diseases or conditions.