[′mem·brə·nəs ′preg·nən·sē] (medicine) Gestation in which there has been a rupture of the amniotic sac and the fetus is in direct contact with the wall of the uterus.
membranous pregnancy
membranous pregnancy
Pregnancy in which the amniotic sac ruptures and the embryo comes to lie in direct contact with the uterine wall.See also: pregnancyLegalSeePregnancy