diff -u b/core/misc/drupal.js b/core/misc/drupal.js
--- b/core/misc/drupal.js
+++ b/core/misc/drupal.js
@@ -1,6 +1,6 @@
 /**
  * @file
- * Defines the Drupal JS API.
+ * Defines the Drupal JavaScript API.
  */
 
 /**
@@ -39,7 +39,7 @@
 /**
  * Global Drupal object.
  *
- * All Drupal JS API is contained in this namespace.
+ * All Drupal JavaScript APIs are contained in this namespace.
  *
  * @global
  *
@@ -47,7 +47,7 @@
  */
 window.Drupal = {behaviors: {}, locale: {}};
 
-// Class indicating that JS is enabled; used for styling purpose.
+// Class indicating that JavaScript is enabled; used for styling purpose.
 document.documentElement.className += ' js';
 
 // Allow other JavaScript libraries to use $.