iframe
noun
RareNot in standard dictionaries
1
A section of a web page that can act as the container for a second separate page or resource.
“This enabled developers to forego framesets altogether and simply place invisible iframes (through the use of CSS) on a page to enable client-server communication.”
“Although you can use standard JavaScript and AJAX in sandboxed iframe pages to your heart's content, the Facebook Platform places restrictions over the amount of scripting capabilities you can add to the more tightly integrated FBML pages.”
From the name of the HTML element, short for inline frame.
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