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