DAISY—Structure Guidelines: Elements, Inline Elements, Information Object Defining Instance
Information Object
Defining Instance
Definition
The first occurrence of a word or term that is defined or explained elsewhere in the book.
Markup
Use this element to mark the first occurrence of a word or term that is defined later in a book. Include in the tag a link to the definition, located perhaps in a glossary.
Syntax
<dfn>...</dfn>
Example
<p>Some of the most versatile materials are made of <dfn><a
href="#polymer">polymers.</a></dfn></p>