diff --git a/doc/glossary/glossary-terms.xml b/doc/glossary/glossary-terms.xml
index dd22482ebd..86e4ef2fe1 100644
--- a/doc/glossary/glossary-terms.xml
+++ b/doc/glossary/glossary-terms.xml
@@ -830,6 +830,21 @@
       </glossdef>
     </glossentry>
 
+    <glossentry>
+      <glossterm>Bell-LaPadula model<indexterm class="singular">
+          <primary>Bell-LaPadula model</primary>
+        </indexterm></glossterm>
+
+      <glossdef>
+        <para>A security model that focuses on data confidentiality
+        and controlled access to classified information.
+        This model divide the entities into subjects and objects.
+        The clearance of a subject is compared to the classification of the
+        object to determine if the subject is authorized for the specific access mode.
+        The clearance or classification scheme is expressed in terms of a lattice.</para>
+      </glossdef>
+    </glossentry>
+
     <glossentry>
       <glossterm>Bexar<indexterm class="singular">
           <primary>Bexar</primary>