amnion
noun
- innermost membranous sac that surrounds and protects the developing embryo
Wiktionary
Pronunciation: /ˈæm.nɪ.ɒn/ / /ˈæm.ni.ɑːn/
noun
Etymology: From Latin amnion (“membrane around a fetus”), from Ancient Greek ἀμνίον (amníon).
- The innermost membrane of the fetal membranes of reptiles, birds, and mammals; the sac in which the embryo is suspended.
“Near-synonym: amniotic sac”
“He never seemed to mind, and after a while, she no longer felt self-conscious about languishing in the amnion of his office.”