Meaning of diagnostic in English:


Pronunciation /ˌdʌɪəɡˈnɒstɪk/

See synonyms for diagnostic on

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  • 1Concerned with the diagnosis of illness or other problems.

    ‘a diagnostic tool’
    • ‘Pneumatic otoscopy and tympanometry are useful diagnostic tools for managing otitis media with effusion.’
    • ‘Further research is needed to provide general practitioners with easy to use diagnostic tools to differentiate bacterial from viral conjunctivitis to tailor antibiotic prescriptions.’
    • ‘Physicians have few diagnostic tools to detect the scars and growths of endometriosis.’
    • ‘A definite diagnosis was made when diagnostic criteria were fully met.’
    • ‘An exercise test should end when diagnostic criteria have been reached or when the patient's symptoms and signs dictate.’
    • ‘Overall diagnostic accuracy was the same in both groups.’
    • ‘Since prostate cancer often has no early warning signs, early diagnostic testing can be critical.’
    • ‘A screening test is not the same as diagnostic test.’
    • ‘Development and introduction of new diagnostic techniques have greatly accelerated over the past decades.’
    • ‘Therefore, new diagnostic techniques with significantly improved sensitivity and specificity are required.’
    • ‘Compact discs may soon serve as diagnostic tools to be used in doctor's offices, or even at home.’
    • ‘A standard necropsy protocol with agreed diagnostic criteria was used to ensure consistent classification.’
    • ‘Have chest pain units led to any improvement in diagnostic accuracy and clinical outcome?’
    • ‘Many terminally ill patients are unable to tolerate a full diagnostic assessment.’
    • ‘Diagnostic accuracy is crucial in anatomic pathology, including surgical pathology and cytopathology.’
    • ‘If this fails, or the patient has severe or atypical symptoms, other diagnostic measures are indicated.’
    • ‘Normalisation of symptoms and diagnostic confusion and are likely to apply to illness behaviour in general.’
    • ‘Obstructive sleep apnea is a fairly common sleep disorder and comprises the major group of patients being admitted to the diagnostic sleep laboratories.’
    • ‘Clinical history can be unreliable as a diagnostic indicator of latex allergy because of confounding variables.’
    • ‘We emphasise the importance of a history of travel to Latin America in patients presenting with unusual skin lesions or chronic nasopharyngeal symptoms and describe the diagnostic process.’
    1. 1.1(of a symptom) distinctive, and so indicating the nature of an illness.
      ‘reduced enzyme activity is diagnostic of the disease’
      • ‘This use of medication is different from the more traditional use to address Axis I diagnostic symptoms.’
      • ‘Major ophthalmological textbooks list several signs and symptoms as being diagnostic for the cause of acute infectious conjunctivitis.’
      • ‘A serum prolactin concentration of > 1000 IU / l is diagnostic and usually indicates a microadenoma.’
      • ‘An exact clinical pathological diagnosis is often difficult, while the demonstration of the specific fusion protein is diagnostic for these rare sarcomas.’
      • ‘Among a random sample of those with no reported diabetes, plasma samples indicated just 2% had diagnostic signs of type 2 diabetes.’
      • ‘The presence of lymphocytes themselves was not considered diagnostic.’
      • ‘No blood findings are characteristic and the chest X ray alone is not diagnostic.’
      • ‘Immunostains for WT1 protein and the characteristic translocation are diagnostic of this tumor.’
      • ‘These findings are characteristic and diagnostic of a follicular lymphoma.’
      • ‘Most psychiatrists would recognise the symptoms as being diagnostic of the disorder.’
      • ‘The characteristic diagnostic feature of Hartnup disorder is a dramatic neutral hyperaminoaciduria.’
      • ‘The characteristic electromyographic changes of dermatomyositis if present can be diagnostic of dermatomyositis muscle damage.’
      typical, usual, normal, predictable, habitual, in character
  • 2Characteristic of a particular species, genus, or phenomenon.

    ‘the diagnostic character of having not one but two pairs of antennae’
    • ‘The former is considered to be among the diagnostic characteristics of that genus, and the latter is shared by most but not all species of Hyolithes.’
    • ‘This is because the limits of the circumscription of an ICZN-taxon can only be approximated using the species and diagnostic characters listed by the author.’
    • ‘The only diagnostic characters the type species has are the straight anterior border with a central raised area and a tapered glabella.’
    • ‘The duck feather did not contain diagnostic characters for species identification.’
    • ‘To facilitate ascription to previously defined ribotypes in the genus, the diagnostic nucleotides based on Fuertes Aguilar and Nieto Feliner are given at the end of the table’
    • ‘The diagnostic feature of this species is the two short crescent-shaped ridges near the base of the labellum; these leading down to a small, brightly coloured pit, the nectary.’
    • ‘As with all raninids, many of the diagnostic features of this genus are found in the fronto-orbital region.’
    • ‘The main difference is in the stelliplanate elements, which are diagnostic for this species.’
    • ‘Such granulae have been considered by Becker as a diagnostic feature of this species.’
    • ‘The endemic Australian genera are closely related and few seed and fruit characters are diagnostic at the generic level.’
    • ‘Nucleotides diagnostic for the P1 and P7 haplotypes are in black and gray boxes, respectively.’
    • ‘Presence of inclusions may be described, although they are not generally considered diagnostic.’
    • ‘Bright yellow or orange fluorescence in response to NP is considered diagnostic for flavonoids.’
    • ‘However, these characters are diagnostic at higher taxonomic levels.’
    • ‘These clades are labeled together with four diverse MSY1 codes from each lineage to indicate the diagnostic minisatellite structures.’
    • ‘The identification of this taxon at locality 1 is based upon a highly distinctive tabular horn and diagnostic trunk vertebrae.’
    • ‘Using ICP-MS, he determined which elements were most diagnostic of a wine's region of origin.’
    • ‘Specimens showing a distinct recognizable set of diagnostic features were defined as morphotypes and documented photographically.’
    • ‘The positions of primers used for PCR amplification and sequencing and the diagnostic PstI site are indicated.’
    • ‘Grey and black mudrocks in the Annascaul Formation have yielded diagnostic palynomorph assemblages indicative of an Early Ordovician age.’
    systematic, logical, scientific, inquisitive, investigative, inquiring, methodical, organized, well organized, ordered, orderly, meticulous, rigorous, searching, critical, interpretative, diagnostic, exact, precise, accurate, mathematical, regulated, controlled, rational


  • 1A distinctive symptom or characteristic.

    ‘But anaphora has never been taken seriously as a diagnostic for such a distinction.’
    • ‘Always a good diagnostic about what the wingers hate and fear, eh?’
    • ‘The insertion of mega-brand convenience stores like these into fragile local business ecologies will be a powerful diagnostic for their health.’
    • ‘The annual report said that assessing the status of religious freedom often served as a helpful diagnostic for the overall health and stability of a nation.’
    • ‘As I am going through the potential cancer diagnostic for my dad, this book has given us all in my family the soothing and peace we need in such a tough moment.’
    1. 1.1Computing A program or routine that helps a user to identify errors.
      ‘The desktop interface puts the diagnostics on the computer screen's tray bar.’
      • ‘Monitoring, diagnostics and software updates all have to go through the service provider.’
      • ‘It took a while to figure out that the reason there were no diagnostics in the error log for the initial set of transactions was simply because the Linux Hub already had run the first few dozen transactions successfully!’
      • ‘DLTSage performs error analysis and predictive diagnostics on its SDLT drives.’
      • ‘So schools and individuals who want and need to learn more about computer repair and diagnostics but who don't want a heavily structured class will find it an excellent learning tool.’
  • 2diagnosticsThe practice or techniques of diagnosis.

    ‘advanced medical diagnostics’
    • ‘Current applications of virtual reality in preoperative diagnostics include gastroscopy, bronchoscopy, and colonoscopy.’
    • ‘The researchers explain that a similar problem exists in the development of better magnetic imaging tools for medical diagnostics.’
    • ‘Now they appear to on the verge of a solution: a new imaging technique in medical diagnostics, called Optical Coherence Tomography.’
    • ‘Many clinical benefits are also to be derived from collaboration between the professions in terms of diagnostics and therapeutics (both medical and surgical).’
    • ‘For years, HPV testing was a relatively small, unnoticed component of the medical economy, struggling to find its place in medical diagnostics.’
    • ‘Attempts have been made to relate such shifts to prevailing climates of medical diagnostics or social circumstances.’
    • ‘Over 4000 exhibitors from 67 nations will showcase state-of-art products in the fields of medical technology, diagnostics, analytics and therapy.’
    • ‘Some of the current and future new diagnostic techniques will eventually become mainstream tools in clinical diagnostics and may very well replace some conventional diagnostic methods.’
    • ‘This nationwide network of multidisciplinary academic centers will conduct wide-ranging research on infectious diseases and the development of diagnostics, therapeutics and vaccines.’
    • ‘The initiative may expand to include diagnostics, primary care, and chronic disease management services’
    • ‘A family history combined with other risk factors helps determine the need for additional preoperative diagnostics.’
    • ‘In medical diagnostics, solid-phase immunoassays are used where immunoglobulins are immobilized on a substrate, which then form sandwichlike complexes with antigens.’
    • ‘The Department of Medical Genetics in Bulgaria was found in 1971 as a unique educational unit having a well-developed base for education, diagnostics and research studies.’
    • ‘The indifferent young man I talked to at the Sprint store in the Bonair shopping center in San Rafael, California then said that they didn't do repairs or diagnostics and didn't know who did.’
    • ‘We try to refine the diagnostics in a scientific manner before offering the treatment.’
    • ‘That's very useful for diagnostics, it's very useful for detecting whether somebody has cancer, obviously if we can detect that early, it can be life-saving.’
    • ‘One bloke even had his car towed away to the dealership for diagnostics but they couldn't find anything wrong with it.’
    • ‘Prof. Padmanabhan says diagnostics presents another promising area of research for India.’
    • ‘Would it be impossibly unrealistic to suggest that a shift of resource into diagnostics and screening might pay long term benefits?’
    • ‘You can expect to pay half an hour's labour for the diagnostics and a further half hour if it can be corrected on the spot.’


Early 17th century from Greek diagnōstikos ‘able to distinguish’, from diagignōskein ‘distinguish’; the noun from hē diagnōstikē tekhnē ‘the art of distinguishing (disease)’.