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