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