mortality

mortality
(pl. -ies)
[mass noun]
  1. the state of being subject to death
    必死性
    the work is increasingly haunted by thoughts of mortality.
    这工作越来越让人产生必死无疑的想法。
  2. death, especially on a large scale
    (尤指大规模的)死亡
    the causes of mortality among infants and young children.
    引起婴儿和幼童大量死亡的原因。
    ■(亦作 mortality rate)the number of deaths in a given area or period, or from a particular cause[count noun]
    死亡率
    post-operative mortality was 90 per cent for some operations.
    一些手术的术后死亡率是90%。
语源
  1. late Middle English: via Old French from Latin mortalitas, from mortalis (see mortal)
英语宝典
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