资料来源 : pyDict

初蜕

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Amnios \Am"ni*os\, n.
   Same as {Amnion}.

资料来源 : WordNet®

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