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