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Meaning of diagnostic

di•ag•nos•tic

Pronunciation: (dī"ug-nos'tik), [key]
— adj.
  1. of, pertaining to, or used in diagnosis.
  2. serving to identify or characterize; being a precise indication.
—n.
  1. diagnosis (def. 1).
  2. a symptom or characteristic of value in diagnosis.
  3. a device or substance used for the analysis or detection of diseases or other medical conditions.
    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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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