Definition of false negative in English:

false negative

noun

  • A test result which wrongly indicates that a particular condition or attribute is absent:

    ‘it's possible to have a false negative—the test says you aren't pregnant when you are’
    [as modifier] ‘premature assessments may give false negative results’
    • ‘Some parents who receive false negative results experience anger, and some have planned to take legal action.’
    • ‘False negatives could have bigger consequences than false positives.’
    • ‘There are some who say that because of false positives and false negatives early detection is not worth it.’
    • ‘From my own site's statistics, that figure is a refreshing 99.22%, with 0.26% false positives and 0.52% false negatives.’
    • ‘DNA evidence is so accurate that I think that having false negatives is a rarity.’
    • ‘In terms of misclassifications, false positives were more prevalent than false negatives.’
    • ‘A needle biopsy can produce a false negative if enough cells are not sampled.’
    • ‘To account for the possiblity of false negatives, a test should be done more than 3 months after exposure.’
    • ‘False negatives create a sense of security that is certainly sometimes unwarranted.’
    • ‘But the technology is expensive and subject to false negatives, Lowe says.’
    • ‘First, he says, the test can give false negative or positive readings, requiring additional tests for verification.’
    • ‘There is, however, an irreducible number of false negative results in any screening programme; the reasons for this are complex.’
    • ‘Unfortunately, it has a 40% false positive rate ... though it has a very low false negative rate.’
    • ‘It takes time for antibodies to develop, so having the test too early can lead to false negative results.’
    • ‘These cutoffs were intentionally set "low" to prevent false negatives during the screening phase.’
    • ‘In the case of a number of patients who were given false negative results on cervical screening in east Kent in England, the courts awarded the patients compensation.’
    • ‘According to the National Cancer Institute, in women ages 40-49 there is a high rate of missed tumors, resulting in 40% false negative test results.’
    • ‘The false negative rate is 4.6 per cent.’