There isn't a single, universally accepted term for a "microbiology gel." It's a broad term that could refer to several different things depending on the context. To give you a more accurate answer, I need more information about what you're looking for.

Could you please tell me:

* What is the purpose of this gel? Is it for culturing bacteria, testing for specific organisms, or something else entirely?

* What type of microbiology are you interested in? Is it medical, environmental, food safety, or something else?

* Do you have any other clues about the gel? For example, does it have a specific color, texture, or ingredients?

Once I know more, I can help you find the correct name or a more precise description of what you're looking for.