Afterbirth and Amnion

Afterbirth noun - The placenta and fetal membranes that are expelled from the uterus after the baby is born.

Amnion and afterbirth are semantically related in amniotic sac topic. In some cases you can use "Amnion" instead a noun "Afterbirth".

Amnion noun - Thin innermost membranous sac enclosing the developing embryo of higher vertebrates (reptiles, birds and mammals).

Afterbirth and amnion are semantically related in amniotic sac topic. You can use "Afterbirth" instead a noun "Amnion".