What does the term Estim mean?

"Estim" is not a commonly used term in any language or field. It's possible that you've encountered a typo or a shortened version of a longer word.

To help me understand what you mean, please provide more context:

* Where did you see the term "Estim"? (e.g., a website, a book, a conversation)

* What was the context of the term? (e.g., was it part of a technical description, a casual conversation, etc.)

With more information, I can help you figure out the meaning of the term you're looking for.