("allalangev")

olemus
allapoole avanev

Wiktionary:
adj
(computing, graphical user interface, of a widget) dropping down from above; being a specific type of selection control that hides its contents until activated

näiteid
dropdown list -- ripploend
dropdown menu -- rippmenüü

https://en.wikipedia.org/wiki/Drop-down_list

https://duckduckgo.com/?q=dropdown+menu&t=h_&iax=images&ia=images