Index: modules/field/field.info.inc
===================================================================
RCS file: /cvs/drupal/drupal/modules/field/field.info.inc,v
retrieving revision 1.59
diff -u -r1.59 field.info.inc
--- modules/field/field.info.inc	24 Jan 2011 12:51:08 -0000	1.59
+++ modules/field/field.info.inc	10 Feb 2011 23:02:59 -0000
@@ -735,7 +735,7 @@
  *         'default' => array(
  *           'weight' => The weight of the component in displayed entities in
  *             this view mode,
- *           'visibility' => Whether the component is visible or hidden in
+ *           'visibile' => TRUE if the component is visible, FALSE if hidden, in
  *             displayed entities in this view mode,
  *         ),
  *         'teaser' => array(
Index: modules/field/field.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/field/field.module,v
retrieving revision 1.94
diff -u -r1.94 field.module
--- modules/field/field.module	2 Jan 2011 17:26:39 -0000	1.94
+++ modules/field/field.module	10 Feb 2011 23:02:59 -0000
@@ -559,7 +559,7 @@
  *         // the 'default' mode:
  *         'default' => array(
  *           'weight' => The weight of the pseudo-field,
- *           'visibility' => Whether the pseudo-field is visible or hidden,
+ *           'visible' => TRUE if the pseudo-field is visible, FALSE if hidden,
  *         ),
  *         'full' => ...
  *       ),
Index: modules/field/field.api.php
===================================================================
RCS file: /cvs/drupal/drupal/modules/field/field.api.php,v
retrieving revision 1.103
diff -u -r1.103 field.api.php
--- modules/field/field.api.php	18 Jan 2011 18:25:17 -0000	1.103
+++ modules/field/field.api.php	10 Feb 2011 23:02:59 -0000
@@ -2204,8 +2204,9 @@
  *   - view_mode: The view mode, e.g. 'full', 'teaser'...
  */
 function hook_field_extra_fields_display_alter(&$displays, $context) {
+  // Hide the description pseudo-field for taxonomy terms in 'full' view mode.
   if ($context['entity_type'] == 'taxonomy_term' && $context['view_mode'] == 'full') {
-    $displays['description']['visibility'] = FALSE;
+    $displays['description']['visible'] = FALSE;
   }
 }