fragmentation - the disintegration of social norms governing behavior and thought and social relationships

decay - an inferior state resulting from the process of decaying; "the corpse was in an advanced state of decay"; "the house had fallen into a serious state of decay and disrepair"

fibrinolysis - a normal ongoing process that dissolves fibrin and results in the removal of small blood clots; "drugs causing fibrinolysis have been utilized therapeutically"

lysis - (biochemistry) dissolution or destruction of cells such as blood cells or bacteria

natural action, natural process, activity, action - a process existing in or produced by nature (rather than by the intent of human beings); "the action of natural forces"; "volcanic activity"

alpha decay - radioactive decay of an atomic nucleaus that is accompanied by the emission of an alpha particle

beta decay - radioactive decay of an atomic nucleus that is accompanied by the emission of a beta particle

nuclear reaction - (physics) a process that alters the energy or structure or composition of atomic nuclei

extermination, extinction - complete annihilation; "they think a meteor cause the extinction of the dinosaurs"

demolition, wipeout, destruction - an event (or the result of an event) that completely destroys something