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