Ivory is a word that refers to the hard white material from the tusks of elephants, walruses, and other animals. It is often used to make decorative items like statues, jewelry, or piano keys. Full definition
The medium can take information that is too often stuck in ivory towers and project it into hearts and minds everywhere. (teached.org)
People who work in administration roles may not be making big decisions in ivory towers, but without admin staff no business would be able to function. (allaboutcareers.com)
Maintaining the focus has created the impression of ivory tower academics who refuse to engage. (judithcurry.com)