Add :term:s for "new-style class".
diff --git a/Doc/library/pickle.rst b/Doc/library/pickle.rst
index ab19ff8..e4471f2 100644
--- a/Doc/library/pickle.rst
+++ b/Doc/library/pickle.rst
@@ -122,7 +122,7 @@
earlier versions of Python.
* Protocol version 2 was introduced in Python 2.3. It provides much more
- efficient pickling of new-style classes.
+ efficient pickling of :term:`new-style class`\es.
Refer to :pep:`307` for more information.
@@ -430,8 +430,8 @@
protocol 2. Implementing this method is needed if the type establishes some
internal invariants when the instance is created, or if the memory allocation is
affected by the values passed to the :meth:`__new__` method for the type (as it
-is for tuples and strings). Instances of a new-style type :class:`C` are
-created using ::
+is for tuples and strings). Instances of a :term:`new-style class` :class:`C`
+are created using ::
obj = C.__new__(C, *args)
@@ -459,8 +459,8 @@
.. warning::
- For new-style classes, if :meth:`__getstate__` returns a false value, the
- :meth:`__setstate__` method will not be called.
+ For :term:`new-style class`\es, if :meth:`__getstate__` returns a false
+ value, the :meth:`__setstate__` method will not be called.
Pickling and unpickling extension types