mortality

noun

1. the condition of being mortal; esp., the nature of a human being, as having eventually to die
2. death on a large scale, as from disease or war
3. 1. the proportion of deaths to the population of a region, nation, etc.; death rate
   2. the death rate from a particular disease
4. the number or proportion that fail: the high mortality of first-year students
5. human beings collectively
6. Obsolete death