Hot answers tagged terminology
Wikipedia has this short list of graphical elements for interfaces that use the prevailing WIMP paradigm. https://en.wikipedia.org/wiki/List_of_graphical_user_interface_elements According to the example you've provided above, I think what you have there is a zoomable popup control or zoomable popup widget Hope this helps! Personally I've never liked ...
Only top voted, non community-wiki answers of a minimum length are eligible