1.
mortality rate; death rate
The proportion of deaths in a population within a given time period or for a specific cause.
死亡 (death) + 率 (rate, ratio). A statistical term used in medicine, public health, and demographics. The word appears frequently in news reports about disease, disasters, and public safety.
Common collocations
- 死亡率が高い — mortality rate is high
- 死亡率が低い — mortality rate is low
- 死亡率を下げる — lower the mortality rate
- 乳児死亡率 — infant mortality rate
- 致死率 — case fatality rate
Similar words
- 致死率 — case fatality rate — specifically the proportion of deaths among those infected or affected
- 出生率 — birth rate — the demographic counterpart
- 生存率 — survival rate — the inverse concept, often used in cancer treatment