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