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