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