Add :term:s for iterator.
diff --git a/Doc/library/weakref.rst b/Doc/library/weakref.rst
index 695bf94..21007d9 100644
--- a/Doc/library/weakref.rst
+++ b/Doc/library/weakref.rst
@@ -150,7 +150,7 @@
.. method:: WeakKeyDictionary.iterkeyrefs()
- Return an iterator that yields the weak references to the keys.
+ Return an :term:`iterator` that yields the weak references to the keys.
.. versionadded:: 2.5
@@ -182,7 +182,7 @@
.. method:: WeakValueDictionary.itervaluerefs()
- Return an iterator that yields the weak references to the values.
+ Return an :term:`iterator` that yields the weak references to the values.
.. versionadded:: 2.5