HTML <dfn> tag: The HTML <dfn> tag specifies defining instance of a term in HTML. While the nearest parent of the <dfn> tag must also contain the definition/explanation for the term inside <dfn>. The term inside the HTML dfn tag can be any one of the following:
1. Without a title attribute within a <dfn> tag.
2. With the presence of a title attribute.
3. The title attribute of an <abbr> tag inside a <dfn> tag.
HTML <dfn> Tag
This HTML<dfn>tag supports both the global and the event attributes. Generally, the defining instance is the first use of a term in a document.
The HTML<dfn> tag is supported by different type of browsers.
- Internet Explorer
<!DOCTYPE html> <html> <body> <p><dfn id="C-def">C</dfn> is introduced by Dennis Ritchie.</p> </body> </html>
C is introduced by Dennis Ritchie.