AMNION as NOUN

1. Meaning
   • thin innermost membranous sac enclosing the developing embryo of higher vertebrates (reptiles, birds and mammals)
   
   Synonym(s)
   • amnios (what does amnios mean?)
   • amniotic sac (what does amniotic sac mean?)
   
   Hypernyms(s) amnion is a kind of… Example: animal is a hypernym of mammal, plant is a hypernym of flower
   • sac (what does sac mean?)