<p>Tag wikis are made of two parts: </p>

<ul>
<li>The <em>excerpt</em> which is displayed on question lists and the tag hover menu. It is the part shown when clicking on the "show excerpt" link in a tag wiki.</li>
</ul>

<blockquote>
  <p><img src="https://i.stack.imgur.com/V80vP.png" alt="screenshot"></p>
</blockquote>

<ul>
<li>The <em>body</em> which contains detailed information about a tag wiki.</li>
</ul>

<p>When the excerpt is displayed there is a clickable item, usually labelled "Learn more" that will cause the body to be displayed.</p>

<p>Sometimes the term "tag-wiki" is used when referring only to the body part.</p>

<p><sub>Reference: imported excerpt and wiki from the main meta <a href="http://meta.stackexchange.com/tags/tag-wiki/info">Stack Exchange site</a>.</sub></p>
