diff -r b2dd9f406a98 -r 5fc4fc64116c data/dictionary.xml
--- a/data/dictionary.xml	Mon Aug 19 18:41:51 2013 +0200
+++ b/data/dictionary.xml	Mon Aug 19 18:48:58 2013 +0200
@@ -689,7 +689,16 @@
 	</concept>
 	<concept>
 		<term abbreviation="" completeForm="Diameter" language="en"/>
-		<explanation language="en"><text></text></explanation>
+		<explanation language="en">
+			<text>
+				an AAA protocol and a successor of the RADIUS protocol;
+				consists of the base protocol and many „Diameter Applications“ (protocols based on Diameter)
+				e.g.
+					Diameter Credit-Control Application,
+					Diameter Session Initiation Protocol Application or
+					Diameter Extensible Authentication Protocol Application
+			</text>
+		</explanation>
 		<tag>security</tag>
 		<tag>charging</tag>
 		<tag>protocol</tag>