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ammunition
amnesia
amnesty
Amnesty International
amnia
amnio
amniocentesis
amniography
amnion
amnioscopy
amniote
amniotic fluid
amniotic sac
amniotomy
amobarbital
amodiaquine
amoeba
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amnion
am·ni·on [ ámnee òn ] (plural am·ni·ons or am·ni·a [ ámnee ə ])


noun 
Definition:
 
1. inner membrane surrounding embryo: the inner of the two membranes enclosing the embryo of a bird, reptile, or mammal and its surrounding fluid.
See also  chorion
2. embryo sac: the fluid-filled sac within which the embryo of a bird, reptile, or mammal develops
[Mid-17th century. < Greek, "caul" < amnos "lamb"]

am·ni·ot·ic [ àmnee óttik ] adjective
Encarta® World English Dictionary [North American Edition] © & (P)2007 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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