'Diagnostic' definitions:

Definition of 'diagnostic'

From: WordNet
adjective
Concerned with diagnosis; used for furthering diagnosis; "a diagnostic reading test"
adjective
Characteristic or indicative of a disease; "a diagnostic sign of yellow fever"; "a rash symptomatic of scarlet fever"; "symptomatic of insanity"; "a rise in crime symptomatic of social breakdown" [syn: diagnostic, symptomatic]

Definition of 'Diagnostic'

From: GCIDE
  • Diagnostic \Di`ag*nos"tic\, a. [Gr. ? able to distinguish, fr. ?: cf. F. diagnostique.] Pertaining to, or furnishing, a diagnosis; indicating the nature of a disease. [1913 Webster]

Definition of 'Diagnostic'

From: GCIDE
  • Diagnostic \Di`ag*nos"tic\, n. The mark or symptom by which one disease is known or distinguished from others. [1913 Webster]