Word: dropdown
An instance of a selection object that hides the contents (especially the other choices) until activated. Example: That screen is good, but add a couple of dropdowns and it will be perfect.
(of a widget) Dropping down from above; being a specific type of selection control that hides its contents until activated. Example: Click the Colours button on the toolbar to show a dropdown menu of available colours.
You can find a list of possible crossword clues for DROPDOWN below.