Rate of babies who die shortly after birth in a given country. Lower rates often correlate with industrialization of the country and high quality pre-natal and obstetric care.

index of X = I = infinite

infant mortality n.

It is common lore among hackers (and in the electronics industry at large; this term is possibly techspeak by now) that the chances of sudden hardware failure drop off exponentially with a machine's time since first use (that is, until the relatively distant time at which enough mechanical wear in I/O devices and thermal-cycling stress in components has accumulated for the machine to start going senile). Up to half of all chip and wire failures happen within a new system's first few weeks; such failures are often referred to as `infant mortality' problems (or, occasionally, as `sudden infant death syndrome'). See bathtub curve, burn-in period, Infant Mortality as applied to Engineering Systems.

--The Jargon File version 4.3.1, ed. ESR, autonoded by rescdsk.

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