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单词 death rate
释义
death rate

Statistics
  • See mortality rate.


Biology
  • The rate at which a particular species or population dies, whatever the cause. The death rate is an important factor in controlling the size of a population. Compare birth rate.


Geography
  • The number of deaths in a year per 1 000 of the population, as measured at mid-year. This is a crude rate—no allowance is made for different distributions of age and sex. For example, in 2003, Sri Lanka had a crude death rate of 5.9%, compared with 10.2% in the UK, 2004. The low rate for Sri Lanka is a reflection of the youth of its population—24.3% are under 14, as opposed to 17.2% in the UK. A standardized death rate compares the rate with a real or assumed population which is chosen as standard.


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