• Juicy Studio: Jargon Busting with the Definition Element
  The definition element (dfn) is used to denote the defining instance of a term, and is ideal for marking up idioms and jargon, as well as any other words or phrases that may not be immediately understood by the intended audience. The definition element has been available since HTML 3.2, and is supported by all modern user agents.
  in Public bookmarks with abbr abbreviation accessibility acronym buster dfn expansion html jargon
• A List Apart: Articles: The Accessibility Hat Trick: Getting Abbreviations Right
  abbreviations and acronyms stand out as one of the trickier areas of AAA to implement well. In order to meet our three-part goal of standards compliance, backwards compatibility, and full accessibility, we need to give this aspect of our content a bit of thought.
  in Public bookmarks with aaa abbr abbreviations accessibility acronyms alistapart dfn expansion jargon wcag

dfn from all users