di·ag·nos·tic

[dahy-uhg-nos-tik]
adjective
1.
of, pertaining to, or used in diagnosis.
2.
serving to identify or characterize; being a precise indication.
noun
3.
diagnosis ( def 1 ).
4.
a symptom or characteristic of value in diagnosis.
5.
Medicine/Medical. a device or substance used for the analysis or detection of diseases or other medical conditions.
6.
Computers.
a.
a message output by a computer diagnosing an error in a computer program, computer system, or component device.
b.
a program or subroutine that produces such messages.
00:10
Diagnostic is always a great word to know.
So is auri. Does it mean:
a combining form meaning "ear":
the flat, movable bone at the front of the knee; kneecap.

Origin:
1615–25; < Greek diagnōstikós, equivalent to diagnōst(ós) distinguished (akin to diágnōsis; see diagnosis) + -ikos -ic

di·ag·nos·ti·cal·ly, adverb
post·di·ag·nos·tic, adjective
pre·di·ag·nos·tic, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins
World English Dictionary
diagnostic (ˌdaɪəɡˈnɒstɪk) [Click for IPA pronunciation guide]
 
adj
1.  of, relating to, or of value in diagnosis
 
n
2.  med any symptom that provides evidence for making a specific diagnosis
3.  a diagnosis
 
diagnostically
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

diagnostic
1620s (adj. and noun), from Gk. diagnostikos "able to distinguish," from diagnostos, verbal adj. from diagignoskein (see diagnosis). Related: Diagnostics.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

diagnostic di·ag·nos·tic (dī'əg-nŏs'tĭk)
adj.

  1. Of, relating to, or used in a diagnosis.

  2. Serving to identify a particular disease; characteristic.

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.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
Asperger's has no definitive diagnostic test and extremely subjective criteria.
It develops diagnostic technologies able to find smaller and smaller
  abnormalities.
Facial moustache mark and more powerful flight are diagnostic.
The process is methodical, mathematical, and much more likely to find cancer
  than current diagnostic procedures.
Image for diagnostic
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