What does protoslow mean?

"Protoslow" is not a recognized word in the English language. It's likely a misspelling or a neologism (a newly coined word).

If you encountered this word in a specific context, please provide more information so I can help you understand what it might mean.

For example:

* Where did you see this word? (e.g., a book, website, conversation)

* What was the surrounding text?

* What is the topic of the text?

Knowing more about the context will help me guess the intended meaning.