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false positive

false pos·i·tive (plural false pos·i·tives)


noun 
Definition:
 
1. medicine science erroneous test result: the result of a medical, chemical, or biological test that appears to be positive but is in fact erroneous

2. incorrect profile match: a situation in which data about a person produces an incorrect match against a checklist, e.g. when a passenger profile is matched against a list of suspected terrorists

[Late 20th century]
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