A model prediction of a positive result, such as biological activity, when the true result is negative, i.e. inactivity.
See also: confusion matrix
Source:
PAC, 2016, 88, 239. 'Glossary of terms used in computational drug design, part II (IUPAC Recommendations 2015)' on page 246 (https://doi.org/10.1515/pac-2012-1204)