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Noun: mortality  mor'ta-li-tee
  1. The quality or state of being mortal
  2. The ratio of deaths in an area to the population of that area; expressed per 1000 per year
    - deathrate, death rate, mortality rate, fatality rate

Derived forms: mortalities

Type of: impermanence, impermanency, rate

Antonym: immortality

Encyclopedia: Mortality, bill of