abruption
/əˈbrʌpʃən/noun
mass noun
1- technical the sudden breaking away of a portion from a mass〈技〉突然断裂（或分离）。
1.1
- （亦作 placental abruption）Medicine separation of the placenta from the wall of the womb during pregnancy, especially when it occurs prematurely【医】胎盘剥离。
词源
early 17th cent.: from Latin abruptio(n)-, from abrumpere 'break off' （see ABRUPT）.