diagnostic

Diagnostic describes something related to the identification of a problem or disease. (adjective)

An example of a diagnostic test is an emissions test on a car.
An example of diagnostic is a symptom that is characteristic of a particular disease and that helps doctors to recognize that illness.

See diagnostic in Webster's New World College Dictionary

adjective

noun

the art, science, or method of diagnosis, esp. medical diagnosis
a distinguishing sign or symptom; characteristic
Comput. a routine for testing a piece of hardware or for locating an error in a program

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See diagnostic in American Heritage Dictionary 4

(dīˌəg-nŏsˈtĭk)

adjective

noun

The art or practice of medical diagnosis. Often used in the plural with a singular verb.
A symptom or a distinguishing feature serving as supporting evidence in a diagnosis.
An instrument or a technique used in medical diagnosis.

Related Forms: