breakdown

noun

1.
the act of disrupting an established order so it fails to continue
Derived from:
break down
2.
a mental or physical breakdown
Derived from:
break down
3.
(biology) the process of decay caused by bacterial or fungal action
Derived from:
break down
4.
a cessation of normal operation
Derived from:
break down
5.
an analysis into mutually exclusive categories
Derived from:
break down
6.
(chemistry) separation of a substance into two or more substances that may differ from each other and from the original substance