from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Of, relating to, or used in a diagnosis.
  • adjective Serving to identify a particular disease; characteristic.
  • noun The art or practice of medical diagnosis.
  • noun A symptom or a distinguishing feature serving as supporting evidence in a diagnosis.
  • noun An instrument or technique used in medical diagnosis.

from The Century Dictionary.

  • Of or pertaining to diagnosis; determining a diagnosis; indicating the nature; constituting a ground of discrimination.
  • noun In pathology, a symptom of value in diagnosis.
  • noun In zoology and botany, a term or phrase which constitutes a diagnosis; a definition or characterization.

from the GNU version of the Collaborative International Dictionary of English.

  • noun The mark or symptom by which one disease is known or distinguished from others.
  • adjective Pertaining to, or furnishing, a diagnosis; indicating the nature of a disease.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective of, or relating to diagnosis
  • adjective characteristic of a particular disease
  • noun a technique etc. used in medical diagnosis
  • noun computing Any tool or technique used to find the root of a problem

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective characteristic or indicative of a disease
  • adjective concerned with diagnosis; used for furthering diagnosis


from The American Heritage® Dictionary of the English Language, 4th Edition

[Greek diagnōstikos, able to distinguish, from diagnōstos, distinguished, from diagignōskein, to distinguish; see diagnosis.]


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  • Who puts the agnostic in diagnostic?

    July 4, 2008

  • Being agnostic is to di for.

    July 4, 2008