false alarm◼◼◼(warning sound that turns out to be erroneous) noun [UK: ˈfɔːls ə.ˈlɑːm] [US: ˈfɔːls ə.ˈlɑːrm]
false positive [false positives]◼◻◻(result of a test that shows as present something that is absent) noun [UK: ˈfɔːls ˈpɒ.zə.tɪv] [US: ˈfɔːls ˈpɑː.zə.tɪv]