Diagnosis vs. Symptom — What's the Difference?

Diagnosis is the identification of the nature and cause of a certain phenomenon. Diagnosis is used in many different disciplines, with variations in the use of logic, analytics, and experience, to determine "cause and effect".

An indication of a disorder or disease, especially a subjective one such as pain, nausea, or weakness.

The act or process of identifying or determining the nature and cause of a disease or injury through evaluation of patient history, examination, and review of laboratory data.

A characteristic sign or indication of the existence of something else

The opinion derived from such an evaluation.

(medicine) A perceived change in some function, sensation or appearance of a person that indicates a disease or disorder, such as fever, headache or rash; strictly, a symptom is felt or experienced by the patient, while a sign can be detected by an observer.

A critical analysis of the nature of something.

(figuratively) A signal; anything that indicates, or is characteristic of, the presence of something else, especially of something undesirable.

The conclusion reached by such analysis.

Any affection which accompanies disease; a perceptible change in the body or its functions, which indicates disease, or the kind or phases of disease; as, the causes of disease often lie beyond our sight, but we learn their nature by the symptoms exhibited.

(Biology) A brief description of the distinguishing characteristics of an organism, as for taxonomic classification.

A sign or token; that which indicates the existence of something else; as, corruption in elections is a symptom of the decay of public virtue.

(medicine) The identification of the nature and cause of an illness.

(medicine) any sensation or change in bodily function that is experienced by a patient and is associated with a particular disease

The identification of the nature and cause of something (of any nature).

Anything that accompanies X and is regarded as an indication of X's existence

(taxonomy) A written description of a species or other taxon serving to distinguish that species from all others; especially a description written and published in Latin.

Synonym of diagnose

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.

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.

Scientific determination of any kind; the concise description of characterization of a species.

Critical perception or scrutiny; judgment based on such scrutiny; esp., perception of, or judgment concerning, motives and character.

Identifying the nature or cause of some phenomenon