diff --git a/book/source/glossary.md b/book/source/glossary.md
index 4e8363e..66b8adc 100644
--- a/book/source/glossary.md
+++ b/book/source/glossary.md
@@ -317,9 +317,9 @@ Message Authentication Code
     A piece of information used for integrity and {term}`authenticity<Authentication>` verification of a message. See [](message-authentication-code).
 
 Meta-Introducer
-    An {term}`OpenPGP Certificate` with a {term}`Trust Depth` greater than one.
+    An {term}`OpenPGP Certificate` that acts as a {term}`Trusted introducer` and has a {term}`Trust Depth` greater than one.
 
-    A meta-introducer can introduce other (meta-) introducers.
+    A meta-introducer can introduce other (meta-) {term}`introducers<Trusted introducer>`.
 
 Metadata
     Data related to preferences of an {term}`OpenPGP Certificate` or its {term}`Certificate Holder`, that can be found in {term}`signature` {term}`packets<Packet>`. See [](metadata-in-certificates).