Amnion - Definition
amnion
n 1: thin innermost membranous sac enclosing the developing
embryo of higher vertebrates (reptiles, birds and mammals)
[syn: amnion, amniotic sac, amnios]
n 1: thin innermost membranous sac enclosing the developing
embryo of higher vertebrates (reptiles, birds and mammals)
[syn: amnion, amniotic sac, amnios]