| amniotic raphe | The line of fusion of the amniotic folds over the embryo in reptiles, birds, and certain mammals. (05 Mar 2000) |
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| amniotic sac | <anatomy, obstetrics> Sac, enclosing the embryo of amniote vertebrates, that provides a fluid environment to prevent dehydration during development of land based animals. See: amnion. (18 Nov 1997) |
| embolism, amniotic fluid | Embolism caused by strong uterine contractions near the end of a normal pregnancy that force amniotic fluid into the maternal circulation. (12 Dec 1998) |