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Noun: amnion (amnia,amnions)  am-nee-un
  1. Thin innermost membranous sac enclosing the developing embryo of higher vertebrates (reptiles, birds and mammals)
    - amniotic sac, amnios

Derived forms: amnions, amnia

Type of: sac

Part of: amniote, fetal membrane

Encyclopedia: Amnion

Nearest

amnesia
amnesiac
amnesic
amnesic aphasia
amnestic
amnestic aphasia
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amnic
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amniocentesis
amnion
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amnionic fluid
amnios
Amniota
amniote
amniotic
amniotic cavity
amniotic fluid
amniotic sac
amn't