diff --git a/csp/decorators.py b/csp/decorators.py
index 61c085c..d7389d0 100644
--- a/csp/decorators.py
+++ b/csp/decorators.py
@@ -30,10 +30,10 @@ def _wrapped(*a, **kw):
     return decorator
 
 
-def csp_update(csp_names=('default',), policy_dict=None, **kwargs):
+def csp_update(csp_names=('default',), policy_definitions=None, **kwargs):
     update = _policies_from_names_and_kwargs(
         csp_names,
-        policy_dict,
+        policy_definitions,
         **kwargs,
     )
 
@@ -47,10 +47,10 @@ def _wrapped(*a, **kw):
     return decorator
 
 
-def csp_replace(csp_names=('default',), policy_dict=None, **kwargs):
+def csp_replace(csp_names=('default',), policy_definitions=None, **kwargs):
     replace = _policies_from_names_and_kwargs(
         csp_names,
-        policy_dict,
+        policy_definitions,
         **kwargs,
     )
 
@@ -64,7 +64,7 @@ def _wrapped(*a, **kw):
     return decorator
 
 
-def csp(policies=(), policy_dict=None, **kwargs):
+def csp(policies=(), policy_definitions=None, **kwargs):
     policies = iter_policies(tuple(policies))
 
     if kwargs and not isinstance(next(iter(kwargs.values())), dict):
@@ -72,23 +72,23 @@ def csp(policies=(), policy_dict=None, **kwargs):
         # TODO: single-policy format isn't currently supported for policy_dict
 
         policy_name = next(policy_names)
-        if policy_dict:
-            policy_dict[policy_name] = kwargs
+        if policy_definitions:
+            policy_definitions[policy_name] = kwargs
         else:
-            policy_dict = [(policy_name, kwargs)]
-    elif policy_dict:
-        duplicates = set(kwargs) & set(policy_dict)
+            policy_definitions = [(policy_name, kwargs)]
+    elif policy_definitions:
+        duplicates = set(kwargs) & set(policy_definitions)
         if duplicates:
             raise TypeError(  # TypeError because python does it
                 "csp decorator got multiple policy definitions "
                 "for the same name: %s" % ', '.join(duplicates)
             )
-        policy_dict.update(kwargs)
+        policy_definitions.update(kwargs)
     else:
-        policy_dict = kwargs
+        policy_definitions = kwargs
 
     config = OrderedDict(chain(
-        iter_policies(policy_dict),
+        iter_policies(policy_definitions),
         policies,
     ))
     # import pdb; pdb.set_trace()