From the above desc this looks like the usecase to delete the glossary assocation to an technical term.
You can use the bulk import/export feature for the same.
Ex: If an oracle object(say table) is associated to a Glossary term. You can export the resource.
Find the object for the corresponding oracle table and remove the entries in the csv file for
Title (Informatica Axon) Title (Informatica Business Glossary)
Now import the file back.
This step would be helpful if the glossary association has to be removed in bulk.
Let me know if this helps,
Thank You. That's what I figured out.