1

diagnostic

adjective di·ag·nos·tic \ -ˈnäs-tik \
variants: or less commonly diagnostical play \-ti-kəl\
|Updated on: 12 Aug 2018

Definition of diagnostic

1 a : of, relating to, or used in diagnosis
  • a diagnostic tool
b : using the methods of or yielding a diagnosis
  • diagnostic tests
2 : serving to distinguish or identify
  • a diagnostic feature

diagnostically

play \-ti-k(ə-)lē\ adverb

Examples of diagnostic in a Sentence

  1. Ultrasound is now widely used as a diagnostic tool.

  2. One important diagnostic feature of this condition is a mild rash.

Recent Examples of diagnostic from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'diagnostic.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of diagnostic

1625

in the meaning defined at sense 1a

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2

diagnostic

noun

Definition of diagnostic

1 : the art or practice of diagnosis often used in plural
2 : a distinguishing mark

diagnostician

play \-(ˌ)näs-ˈti-shən\ noun

Examples of diagnostic in a Sentence

  1. the thesis that moral decline is the infallible diagnostic of a decadent society

Recent Examples of diagnostic from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'diagnostic.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of diagnostic

1625

in the meaning defined at sense 1

See Words from the same year
NEW! Time Traveler

DIAGNOSTIC Defined for English Language Learners

diagnostic

Definition of diagnostic for English Language Learners

  • : of, relating to, or used in diagnosis : used to help identify a disease, illness, or problem


Medical Dictionary

1

diagnostic

adjective di·ag·nos·tic \ -ˈnäs-tik \
variants: also diagnostical play \-ti-kəl\

medical Definition of diagnostic

1 : of, relating to, or used in diagnosis
2 : using the methods of or yielding a diagnosis
  • a diagnostic service
  • diagnostic properties

diagnostically

play \-ti-k(ə-)lē\ adverb

2

diagnostic

noun

medical Definition of diagnostic

: the art or practice of diagnosis often used in plural


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