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