(Or "drop-down list") A {graphical user interface} component that allows the user to choose one (or sometimes more than one) item from a list.The current choice is visible in a small rectangle and when the user clicks on it, a list of items is revealed below it.The user can then click on one of these to make it the current choice and the list disappears.In some cases, by holding down a modifier key such as Ctrl when clicking, the selection is added to (or removed from) the set of current choices rather than replacing it.(1999-09-25)