Glossary Definitions plugin wanted

OK I need a glossary / definitions plugin for WordPress

I have scrolled through the entire plugin directory and this does not seem to exist. I have searched Google still no joy. Closest was glossary added to a page and that would have been hundreds of pages.

This needs to have database tables, search enabled, Has a A – Z alphabetical bar at top of page

If you want to see what I require please see this link:

https://www.gsmmobile.co.nz/index.php?option=com_definition

Yes its Joomla 1.5 component and we have now switched over to WordPress.

Can anybody advise is there such a plugin please.

Need something like this

Has a A – Z alphabetical bar at top of page

Lists glossary / definitions from a – z

2.5G In mobile telephony, 2.5G protocols extend 2G systems to provide additional features such as packet-switched connection (GPRS) and enhanced data rates (HSCSD, EDGE).

Any help would be appreciated.