false positive
noun [ C ] uk/ˌfɒls ˈpɒz.ə.tɪv/ us/ˌfɑːls ˈpɑː.zə.t̬ɪv/
假阳性
a result of a scientific test that appears to show something exists or is present, when this is not correct
The anthrax test is unreliable because it produces too many false positives. 炭疽菌检测是不可靠的，因为这种方法产生太多假阳性结果。