What is receptor language?

"Receptor language" is not a standard term in linguistics or any other field. It's possible that it's a misunderstanding or a term used in a very specific context.

Could you provide more context or information about where you encountered this term?

For example:

* Where did you see it? (a book, website, etc.)

* What was the context? (what were they talking about?)

Knowing more about the context would help me understand what "receptor language" might refer to and provide a more accurate explanation.