Where does this definition of wall rock come from?
This entry for wall rock is sourced from Main Dictionary, one of the dictionaries and corpora merged into Lughet.
Is wall rock a noun, verb, or something else?
In this entry, wall rock is tagged as 2n..
What is Lughet?
Lughet is a free trilingual dictionary covering nearly five million entries across Uyghur, Chinese, and English, drawn from more than ten source dictionaries and corpora.