A list in which each item consists of two parts: a word, phrase, term, graphic, chemical structure, or equation paired with one of 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.
The following, in order:
<article>
...
<back>...
<glossary>
<def-list>
<title>ABBREVIATIONS</title>
<term-head>Expansion</term-head>
<def-head>Abbreviation</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-list>
</glossary>...
</back>
</article>
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