What Does Mac OS X Lion Mean?Mac OS X 10.7 Lion is an operating system from Apple. It was notable for some significant new features related to the user interface, like Launchpad and Mission Control. The company also integrated some iOS functionality. Lion was an upgrade from Mac OS X 10.6 Snow Leopard and was followed by OS X 10.8 Mountain Lion, which Apple released on July 25 2012.
The opreating system is sometimes referred to as simply "Lion".