abruption

n. occurrence of abruptly breaking away or off

Placental abruption (Also known as abruptio placentae) is a complication of pregnancy, wherein the placental lining has separated from the uterus of the mother. It is the most common cause of late pregnancy bleeding. In humans, it refers to the abnormal separation after 20 weeks of gestation and prior to birth. It occurs in 1% of pregnancies world wide with a fetal mortality rate of 20-40 epending on the degree of separation. Placental abruption is also a significant contributor to maternal mortality.
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Noun
1. an instance of breaking off suddenly
(synonym) breaking off
(hypernym) break, interruption, disruption, gap

(n.)
A sudden breaking off; a violent separation of bodies.
  

n. a.
يکايک , عليحدگي , انقطاع , جھڑ پڑنا