false-positive

[fawls-poz-i-tiv]

noun Also false positive.

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

pertaining to or being a false-positive: The test has a false-positive rate of 4%.