List in which each item consists of two parts: 1) a word, phrase, term, graphic, chemical structure, or equation, that is paired with 2) one or more descriptions, discussions, explanations, or definitions of it.
The definition <def> part of an item in a two-part (definition) list need not be a “definition” in the strict dictionary sense of that word. Such a definition could be a discussion, explanation, expansion, or something that tells the reader about the <term>. When a <def-list> is within a <glossary> element, the definitions are assumed to be real definitions.
<!ELEMENT def-list %def-list-model; >
(label?, title?, term-head?, def-head?, (def-item | x)*, (def-list)*)
The following, in order:
<abstract>, <ack>, <answer>, <app>, <app-group>, <bio>, <body>, <boxed-text>, <chem-struct>, <def-list>, <disp-quote>, <fig>, <glossary>, <index>, <index-div>, <index-group>, <license-p>, <list-item>, <named-book-part-body>, <named-content>, <notes>, <p>, <question>, <ref-list>, <sec>, <styled-content>, <supplementary-material>, <table-wrap>, <td>, <th>, <toc>, <toc-div>, <toc-entry>, <toc-group>, <trans-abstract>
...
<glossary>
<def-list>
<title>ABBREVIATIONS</title>
<term-head>Abbreviation</term-head>
<def-head>Expansion</def-head>
<def-item><term id="G1">PAP I</term>
<def><p>poly(A)polymerase I</p></def>
</def-item>
<def-item><term id="G2">PNPase</term>
<def><p>polynucleotide phosphorylase</p></def>
</def-item>
<def-item>...</def-item>
...
</def-list>
</glossary>
...