Where does this definition of slack coal come from?
This entry for slack coal is sourced from GetWord Corpus, one of the dictionaries and corpora merged into Lughet.
Does slack coal appear elsewhere on Lughet?
Yes — slack coal appears under other sources or language pairs in Lughet's collection. See the list below.
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.