Use "lambda expression" as preferred to "lambda form".
diff --git a/Doc/reference/compound_stmts.rst b/Doc/reference/compound_stmts.rst
index 7b6c3e2..4a9ad08 100644
--- a/Doc/reference/compound_stmts.rst
+++ b/Doc/reference/compound_stmts.rst
@@ -509,14 +509,14 @@
the form "``**identifier``" is present, it is initialized to a new dictionary
receiving any excess keyword arguments, defaulting to a new empty dictionary.
-.. index:: pair: lambda; form
+.. index:: pair: lambda; expression
It is also possible to create anonymous functions (functions not bound to a
-name), for immediate use in expressions. This uses lambda forms, described in
-section :ref:`lambda`. Note that the lambda form is merely a shorthand for a
+name), for immediate use in expressions. This uses lambda expressions, described in
+section :ref:`lambda`. Note that the lambda expression is merely a shorthand for a
simplified function definition; a function defined in a ":keyword:`def`"
statement can be passed around or assigned to another name just like a function
-defined by a lambda form. The ":keyword:`def`" form is actually more powerful
+defined by a lambda expression. The ":keyword:`def`" form is actually more powerful
since it allows the execution of multiple statements.
**Programmer's note:** Functions are first-class objects. A "``def``" form