noun (plural ~s or amnia) see: yean Date: 1667 a thin membrane forming a closed sac about the embryos or fetuses of reptiles, birds, and mammals and containing the amniotic fluid, a membrane analogous to the ~ and occurring in various invertebrates, amniotic adjective
AMNION
Meaning of AMNION in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012