e
object,
etc.</p>
</dd>
<dt class="hdlist1"><a id="def_unmerged_index"></a>unmerged index</dt>
<dd>
<p>An <a href="#def_index">index</a> which contains unmerged
<a href="#def_index_entry">index entries</a>.</p>
</dd>
<dt class="hdlist1"><a id="def_unreachable_object"></a>unreachable object</dt>
<dd>
<p>An <a href="#def_object">object</a> which is not <a href="#def_reachable">reachable</a> from a
<a href="#def_branch">branch</a>, <a href="#def_tag">tag</a>, or any other reference.</p>
</dd>
<dt class="hdlis