Definitions for "Cascading Menu"
A pop-up menu that is displayed when a command from the active menu is chosen.
A menu that is a submenu of a menu item (also referred to as a hierarchical menu, child menu, or submenu).
Drop down menus with submenus.
Keywords:  mouse, invisible, link, existing, move
a list of links that is invisible until you move your mouse over an existing link on a page