XANALOGICAL means...

To be xanalogical is to be designed in accordance with the principles and system model of XANADU®.

A xanalogical hypertext system is one in which DOCUMENTS TRANSCLUDE their contents from a pool of STABLE MEDIA, and LINKS exist independently of documents, pointing "through" the document presentation to the transcluded source media.

Furthermore, a xanalogical system's client software must facilitate SIDE-BY-SIDE viewing of documents and resources, with VISIBLE CONNECTIONS between transcluded and linked material.

To explore these topics more deeply:

Xanalogical Structure [this is the authoritative document]

The Project Xanadu Web site