Webhelp Responsive - Trouble Overriding Glossentry Handling

[GregWait]

Title says it.
I need to override the default handling of glossentries on a map and build a 2-column HTML table with a header row ("Term" | "Definition") and each glossterm/glossdef pair as a row. I have no problem writing the xslt to build the table, but the WHR output ignores my templates, and I'm at a loss as to how to modify the default handling (within org.dita.html5) to achieve my results.
Thanks in advance for your assistance. - Greg