What Does RSS Feed Mean?
An RSS feed is an up-to-date information or list of notifications that a website delivers to its subscribers. RSS means “rich site summary” or “really simple syndication.”
Techopedia Explains RSS Feed
An RSS feed is read by an RSS reader or a feed reader, which can be either Web based, a standalone desktop application or a mobile application. The reader aggregates all the RSS feeds that a user is subscribed to and presents them in its UI; this avoids the need for the user to go to each website just to read the updates.