Originally <dl> was for glossaries, and there multiple <dd>s are obviously
alternative definitions of the same term.
But then the "definition" semantics of <dl> was relaxed, but nothing is
said about the alternativeness of multiple <dd>s.
I think it should be made clear in HTML5 that multiple <dd>s (and <dt>s
for that matter) are alternatives and not accumulative. Otherwise people
might use "<dd>...<dd>..." instead of "<dd><p>...<p>..." when they wanted
to represent accumulative paragraphs of one description and not several
alternative descriptions.
--
Simon Pieters
