Where does this definition of pier glass come from?
This entry for pier glass is sourced from Main Dictionary, one of the dictionaries and corpora merged into Lughet.
Is pier glass a noun, verb, or something else?
In this entry, pier glass 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.