福克斯词典 \ 英汉词典 \

prevalence是什么意思？

prevalence

英['prevələns] 美[ˈprɛvələns]
  • 形容词：prevalent;
    • 例句
    查看更多关于 “prevalence” 的例句
    同义词
    柯林斯高阶英汉双解学习词典释义
    英汉词典释义
    英英词典释义
    • Noun
      1. the quality of prevailing generally; being widespread;
      "he was surprised by the prevalence of optimism about the future"
      2. (epidemiology) the ratio (for a given time period) of the number of occurrences of a disease or event to the number of units at risk in the population
      3. a superiority in numbers or amount;
      "there is a preponderance of Blacks in our prisons"
    行业词典
    • 医学： 患病率，流行率：在某特定时间内，人群中有某种疾病病例的数目；见rate下的prevalencerate，参见incidence；