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Noun: amniotic sac  `am-nee'ó-tik sak
  1. Thin innermost membranous sac enclosing the developing embryo of higher vertebrates (reptiles, birds and mammals)
    - amnion, amnios

Derived forms: amniotic sacs

Type of: sac

Part of: amniote, fetal membrane

Encyclopedia: Amniotic sac

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amniocentesis
amnion
amnionic
amnionic fluid
amnios
Amniota
amniote
amniotic
amniotic cavity
amniotic fluid
amniotic sac
amobarbital
amobarbital sodium
amoeba
amoeban
amoebiasis
amoebic
amoebic dysentery
Amoebida
Amoebina
amoebiosis