Can you add the visual editor to the description field for custom taxonomies?

Just wrote the function. It’ll display the tinymce editor in every custom taxonomy description right now. Surely you can edit to show it for only some specific taxonomy.

/**
 * Display advanced TinyMCE editor in taxonomy page
 */
function wpse_7156_enqueue_category() {
    global $pagenow, $current_screen;

    if( $pagenow == 'edit-tags.php' ) {
        require_once(ABSPATH . 'wp-admin/includes/post.php');
        require_once(ABSPATH . 'wp-admin/includes/template.php');

        wp_tiny_mce( false, array( 'editor_selector' => 'description', 'elements' => 'description', 'mode' => 'exact' ));
    } 
}
add_action( 'init', 'wpse_7156_enqueue_category' );

You can provide the first argument in wp_tiny_mce as true if you want a stripped version of tinyMCE