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