 the condition to humans.</p>
</dd>
<dt><code>&amp;serious</code>
</dt>
<dd><p>This condition type could be defined by</p><pre>(define-condition-type &amp;serious &amp;condition
  serious-condition?)
</pre><p></p>
<p>This type describes conditions serious enough that they cannot
safely be ignored. This condition type is primarily intended as a
supertype of other condition types.</p>
</dd><dt><code>&amp;error</code>
</dt>
<dd><p>This condition type could be defined by</p><pre>(define-condition-type &amp;erro