<?xml version="1.0" encoding="UTF-8"?>
<term>
  <id>11527</id>
  <title>true negative</title>
  <longtitle>IUPAC Gold Book - true negative</longtitle>
  <doi>10.1351/goldbook.11527</doi>
  <code>11527</code>
  <status>current</status>
  <initialism><em>initialism</em>: TN</initialism>
  <definitions>
    <item>
      <id>1</id>
      <text>A model prediction of a negative result, such as no biological activity, when the true result is also negative.</text>
      <links>
        <item>
          <term>confusion matrix</term>
          <url>https://goldbook.iupac.org/terms/view/11428</url>
        </item>
      </links>
      <sources>
        <item>PAC, 2016, 88, 239. 'Glossary of terms used in computational drug design, part II (IUPAC Recommendations 2015)' on page 258 (https://doi.org/10.1515/pac-2012-1204)</item>
      </sources>
    </item>
  </definitions>
  <altoutputs>
    <html>https://goldbook.iupac.org/terms/view/11527/html</html>
    <json>https://goldbook.iupac.org/terms/view/11527/json</json>
    <plain>https://goldbook.iupac.org/terms/view/11527/plain</plain>
  </altoutputs>
  <citation>Citation: 'true negative' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.11527</citation>
  <license>The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms.</license>
  <collection>If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org .</collection>
  <disclaimer>The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using.</disclaimer>
  <accessed>2026-05-15T09:10:35+00:00</accessed>
</term>
