Where does this definition of humic substance come from?
This entry for humic substance is sourced from GetWord Corpus, one of the dictionaries and corpora merged into Lughet.
Does humic substance appear elsewhere on Lughet?
Yes — humic substance 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.