Where does this definition of London clay come from?
This entry for London clay is sourced from GetWord Corpus, one of the dictionaries and corpora merged into Lughet.
Is London clay a noun, verb, or something else?
In this entry, London clay 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.