single point of failure

Noun

 * 1) A component in a device, or a point in a network, that, if it were to fail, would cause the entire device or network to fail (normally eliminated by adding redundancy).
 * The Jesus nut got its name because it was a single point of failure- if it went, there was nothing you could do but pray.
 * 1)  A minor mistake that creates a chain reaction.
 * 1)  A minor mistake that creates a chain reaction.

Translations

 * Chinese:
 * Mandarin: 單點故障
 * Finnish: yksittäinen vikaantumispiste
 * Swedish: