"Hydroglyphics" is not a recognized scientific or artistic term. It's possible you might be thinking of a similar term or have encountered it in a specific context.

Could you please provide more information about where you encountered the term "hydroglyphics"?

For example, could you tell me:

* Where did you see this term? (A book, website, conversation, etc.)

* What was the context? (What was being discussed or described?)

* What did you understand the term to mean?

This will help me understand what you're looking for and provide a more accurate answer.