Definitions of RSS

RSS (n) RSS is a Web content syndication format. Its name is an acronym for Really Simple Syndication. RSS is a dialect of XML. (source Harvard)

RSS (n) RSS is a format for syndicating news and the content of news-like sites, including major news sites like Wired, news-oriented community sites like Slashdot, and personal weblogs. (source XML.com)

RSS (n) Really Simple Syndication (RSS) is a lightweight XML format designed for sharing headlines and other Web content. (source WebReference)

RSS (n) Really Simple Syndication (RSS) is an XML-based format for content distribution (source CNET)

RSS (n) RSS is an XML-based format for syndicated content. (source IBM)

RSS (n) RSS is an acronym for Rich Site Summary, an XML format for distributing news headlines on the Web, also known as syndication. First started by Netscape as part of the My Netscape site, it expanded through Dave Winer and Userland. RSS started off in an RDF format. (source newsmonster)