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diagnostics

[dahy-uh g-nos-tiks]
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noun (used with a singular verb) Medicine/Medical.
  1. the discipline or practice of diagnosis.
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Origin of diagnostics

First recorded in 1660–70; see origin at diagnostic, -ics

diagnostic

[dahy-uh g-nos-tik]
adjective
  1. of, relating to, or used in diagnosis.
  2. serving to identify or characterize; being a precise indication.
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noun
  1. diagnosis(def 1).
  2. a symptom or characteristic of value in diagnosis.
  3. Medicine/Medical. a device or substance used for the analysis or detection of diseases or other medical conditions.
  4. Computers.
    1. a message output by a computer diagnosing an error in a computer program, computer system, or component device.
    2. a program or subroutine that produces such messages.
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Origin of diagnostic

1615–25; < Greek diagnōstikós, equivalent to diagnōst(ós) distinguished (akin to diágnōsis; see diagnosis) + -ikos -ic
Related formsdi·ag·nos·ti·cal·ly, adverbpost·di·ag·nos·tic, adjectivepre·di·ag·nos·tic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for diagnostics

Historical Examples

  • I wish he'd confine his diagnostics to the Mechanical Division where it belongs!

    We're Friends, Now

    Henry Hasse

  • I booted it up and set my fingers on the keyboard, thinking that I would run some diagnostics and see what was what.

    Little Brother

    Cory Doctorow

  • The cruel and unnecessary methods employed by those untrained for diagnostics, cannot be too vigorously condemned.

    Lameness of the Horse

    John Victor Lacroix


British Dictionary definitions for diagnostics

diagnostics

noun
  1. (functioning as singular) the art or practice of diagnosis, esp of diseases
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diagnostic

adjective
  1. of, relating to, or of value in diagnosis
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noun
  1. med any symptom that provides evidence for making a specific diagnosis
  2. a diagnosis
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Derived Formsdiagnostically, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for diagnostics

diagnostic

1620s (adjective and noun), from Greek diagnostikos "able to distinguish," from diagnostos, verbal adjective from diagignoskein (see diagnosis). Related: Diagnostics.

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Online Etymology Dictionary, © 2010 Douglas Harper

diagnostics in Medicine

diagnostic

(dī′əg-nŏstĭk)
adj.
  1. Of, relating to, or used in a diagnosis.
  2. Serving to identify a particular disease; characteristic.
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n.
  1. diagnostics The art or practice of medical diagnosis.
  2. A symptom or a distinguishing feature serving as supporting evidence in a diagnosis.
  3. An instrument or a technique used in medical diagnosis.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.