false-positive

[fawls-poz-i-tiv]
noun Also false positive.
  1. Medicine/Medical.
    1. a test result that is incorrect because the test indicated a condition or finding that does not exist: a false-positive for syphilis.
    2. a person who receives this test result.
    1. any screening test result that incorrectly detected or classified a person or thing: A false-positive at the airport could cause you to miss your flight.
    2. a person or thing identified by such a test.
adjective
  1. pertaining to or being a false-positive: The test has a false-positive rate of 4%.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018