pop-up menu

list of commands or options that appears temporarily when activated (Computers)

The term context menu (or contextual menu, shortcut menu) is commonly used for menus which pop up when clicking an item in a graphical user interface, offering a list of options which vary depending on the context of the action, the application running, and the item selected. These menus are typically invoked with a secondary mouse button (usually the right-hand button) on a computer running an operating system such as Microsoft Windows, Mac OS X or Unix running the X Window System. Computers with a single-button mouse may use a keyboard-click combination, as with a Control-click in the Macintosh OS. PC keyboards with Microsoft Windows keys also have an additional menu key that opens context menus in MS Windows applications.
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