pop-under
Longman Dictionary of Contemporary English 5++LDOCE 5++ˈpop-under noun [countable] a window containing an advertisement, that suddenly appears under another window on a computer screen when you are looking at a website 〔出现在所浏览网页背后的〕弹出式广告 → pop-upFrom Longman Business Dictionarypop-underˈpop-under noun [countable]COMPUTINGMARKETING a small window containing an advertisement that suddenly appears under another window on a computer screen when you are looking at a website
ˈpop-under nounChineseSyllable
advertisement, another appears window under an containing a suddenly that Business
pop-under
ˈpop-under
noun [countable]
a window containing an advertisement, that suddenly appears under another window on a computer screen when you are looking at a website ⇨ pop-up
ˈpop-under
noun [countable]a window containing an advertisement, that suddenly appears under another window on a computer screen when you are looking at a website ⇨ pop-up