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