Differential diagnosis
Diagnosis Di`ag*no"sis, n.; pl. {Diagnoses}. [NL., fr. Gr. ?, fr. ? to distinguish; dia` through, asunder + ? to know. See {Know}.] 1. (Med.) 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. [1913 Webster]

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. [PJC]

3. Scientific determination of any kind; the concise description of characterization of a species. [1913 Webster]

4. Critical perception or scrutiny; judgment based on such scrutiny; esp., perception of, or judgment concerning, motives and character. [1913 Webster]

The quick eye for effects, the clear diagnosis of men's minds, and the love of epigram. --Compton Reade. [1913 Webster]

My diagnosis of his character proved correct. --J. Payn. [1913 Webster]

{Differential diagnosis} (Med.), the determination of the distinguishing characteristics as between two similar diseases or conditions. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Differential diagnosis — Intervention MeSH D003937 A differential diagnosis (sometimes abbreviated DDx, ddx, DD, D/Dx, or ΔΔ) is a systematic diagnostic method used to identify the presence of an entity where multiple alternatives are …   Wikipedia

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  • differential diagnosis — diagnosis …   Dictionary of ichthyology

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