incidence

/ˈɪnsɪdəns/ n.
标准词条 CET-4
一句话记住

发生率；（疾病的）发病率

释义与例句

n. 发生率；（疾病的）发病率
the rate at which something, especially crime or disease, occurs over a particular period or within a particular group
  1. The incidence of heart disease has decreased in recent years.
    近年来心脏病的发病率有所下降。
  2. Police are concerned about the high incidence of crime in the area.
    警方对该地区的高犯罪率感到担忧。
展开其余 1 条例句
  1. The study examined the incidence of diabetes among adults.
    该研究调查了成年人中糖尿病的发病率。

词源与构词

记忆钩子 in-（进入）+ cid（落下）+ -ence → 事情落到身上 → 发生 → 发生率。

词族与关联词

词族（同一词根派生出的不同词性或形式）
  • incident 事件；事故
    n.
  • incidental 附带的；偶然的
    adj.
同义词
  • frequency 频率
    强调发生的次数或频率，中性词。
    The frequency of accidents has risen. 事故的频率上升了。
反义词
  • nonoccurrence 不发生
    incidence 指发生率，nonoccurrence 指未发生，语义相反。
    The nonoccurrence of the disease pleased doctors. 该疾病未再发生，令医生们欣慰。
常见搭配
  • high incidence of …的高发生率
    Doctors reported a high incidence of flu this winter. 医生报告说今年冬天流感的发病率很高。
  • incidence rate 发病率；发生率
    The incidence rate of the disease is highest in children. 这种疾病的发病率在儿童中最高。
  • incidence of disease 疾病发病率
    Sanitation has reduced the incidence of disease in the region. 卫生条件的改善降低了该地区的疾病发病率。