Opening out to form a three-dimensional structure when the page of a book is opened.
Coming into view suddenly from a concealed position.
Employing the cold launch technique.
Operating or existing for a brief period only; temporary.
A folded paper element which pops up from a book, greeting card, etc.
A pop-up ball: a ball that has been hit to a considerable height above the infield or the shallow outfield; a pop fly.
A business that quickly pops up, such as a temporary restaurant.
A pop-up advertisement; an advertisement that is triggered to appear on a computer screen when an Internet user accesses a particular web page.
Existing in three dimensions
Lifelike.
Having depth, or the illusion of depth, as well as height and width.