abruption — ODE

abruption /əˈbrʌpʃn

▸ noun [mass noun] technical the sudden breaking away of a portion from a mass:

the abruption of layers of epithelial cells from their underlying foundation.

▪ Medicine (also placental abruption) separation of the placenta from the wall of the uterus during pregnancy, especially when it occurs prematurely:

the abruption occurred when she was only 20 weeks into pregnancy

falling, especially if you land on your abdomen, can result in placental abruption.

– ORIGIN early 17th century: from Latin abruptio(n)-, from abrumpere ‘break off’ (see abrupt).