Parses posts for defined glossary terms and adds links to the static glossary page containing the definition. The plugin also creates a tooltip containing the definition which is displayed when users mouseover the term. Based on <a href="https://wordpress.org/extend/plugins/automatic-glossary/" rel="ugc">automatic-glossary</a>.
The code has been optimised from automatic-glossary and unnecessary code has been stripped to keep the plugin lean. However, support for php 4 has been removed and if you are looking for a php 4 glossary, please do download automatic-glossary (although I believe there is a little extra tweaking required).
The tooltip is created with JavaScript based on the article written by <a href="http://www.leigeber.com/author/michael/" rel="nofollow ugc">Michael Leigeber</a> <a href="http://sixrevisions.com/tutorials/javascript_tutorial/create_lightweight_javascript_tooltip/" rel="nofollow ugc">here</a> and can be customized and styled through the tooltip.css and tooltip.js files.
Users of WordPress versions less than 3.0 should use version 1.1 of this plugin.

TooltipGlossary

Parses posts for defined glossary terms and adds links to the static glossary page containing the definition and a tooltip with the definition.

Mazlan Halim

mazlanhalim

Create a searchable WordPress glossary with A-Z filtering, expandable definitions, and structured term management.
Intelligent Glossary Engine helps you build professional glossaries, dictionaries, terminology databases, and knowledge bases directly within WordPress.
Live Demo: 
https://www.mazlanhalim.com/glossary/
Explore a working glossary featuring search, alphabetical filtering, and expandable definitions.
Perfect for:
<ul>
<li>Educational websites</li>
<li>Islamic institutions</li>
<li>Medical websites</li>
<li>Technical documentation</li>
<li>Knowledge bases</li>
<li>Training organisations</li>
</ul>
<h3>Features</h3>
<ul>
<li>A-Z glossary navigation</li>
<li>Live search functionality</li>
<li>Expandable glossary definitions</li>
<li>Structured definition fields</li>
<li>Mobile responsive design</li>
<li>Easy shortcode integration</li>
</ul>

Intelligent Glossary Engine

Create a searchable WordPress glossary with A-Z filtering, expandable definitions, and structured term management.

TooltipGlossary vs Intelligent Glossary Engine