Chrome The visible graphical interface features of an application are sometimes referred to as chrome. See Applying custom module chrome for information about how to modify the look of modules (in other words, the module "chrome"). Reference: http://docs.joomla.org/Glossary
Administration Control Panel The main Joomla back-end Control Panel which is used by administrators for managing the whole site.
Administrator A user level on a Joomla site that has access to all front-end and back-end capabilities. Administrators is just below super user level.
