diff --git a/Doc/glossary.rst b/Doc/glossary.rst
index f8d0e67..34e4858 100644
--- a/Doc/glossary.rst
+++ b/Doc/glossary.rst
@@ -393,7 +393,7 @@
       also :term:`immutable`.
 
    named tuple
-      Any tuple subclass whose indexable elements are also accessible using
+      Any tuple-like class whose indexable elements are also accessible using
       named attributes (for example, :func:`time.localtime` returns a
       tuple-like object where the *year* is accessible either with an
       index such as ``t[0]`` or with a named attribute like ``t.tm_year``).