incidence

英['ɪnsɪdəns]美['ɪnsɪdəns]
  • n. 发生(率)；入射

    • 记忆方法

    词源记忆法
    来自incident，偶发事件，发生。引申词义发生率。
      noun(名词)
      1. 事件;（事件的）发生率

    双解例句

    noun(名词)
    1. 事件;（事件的）发生率

      There have been quite a few incidences of bullying in the school this year.

      今年该校发生了好几起欺凌弱小的事件。

      an increased incidence of cancer near nuclear power stations

      核电站附近癌症发病率的上升

    小知识

    Incidence means the frequency with which something bad occurs. You’ll hear of “incidences of cancer” or “incidences of war.” You hope the incidence is decreasing, not increasing.

    You might confuse incidence and incident. They sound similar, but incident refers only to something that happened, not to the frequency with which it happens. After a car accident, the police file an incident report, which is a fancy way of saying they write down what happened. Looking at these reports grouped together can show you if the incidence of accidents at specific intersections in town is on the rise.

    实用短语

    1. angle of incidence

    2. incidence matrix

    3. incidence rate

      发病率,

    4. cumulative incidence

      累积发病率,累积发生率,累计发病率,累计发生率

    5. normal incidence

      垂直入射,法向入射

    6. incidence angle

      入射角度,倾角

    7. tax incidence

      税收归宿,

    8. plane of incidence

    9. point of incidence

      翻译

    常用短语

    1. incidence rate

      发生率，发病率

    2. incidence angle

      入射角，迎角；安装角

    3. angle of incidence

      [计]入射角

    4. normal incidence

      正入射；垂直入射；法线入射

    5. incidence matrix

      关联矩阵

    6. incidence of a disease

      发病率

    7. oblique incidence

      倾斜入射

    8. grazing incidence

      掠入射；切线入射；临界入射

    9. glancing incidence

      掠入射；切线入射

    单词用法

    词组短语
    incidence rate发生率，发病率；incidence angle入射角，迎角；安装角

    词根词缀

    词根: cid

    1. =fall,表示”落下,降临”; 2. 引申为偶然发生

    • adj.

      accidental 偶然的;意外的;无意中的

      accident[n.意外之事,灾害]+al……的→adj.偶然的;意外的;无意中的

      deciduous 脱落的,落叶的

      de去掉+cid落+uous……的→使[树叶]掉下→落叶的

    • n.

      accident 意外之事,灾害

      ac加强+cid落下,降临+ent→意外的掉下

      coincidence 巧合

      coincide[v.巧合;同时发生]+nce→n.巧合

      incidence 落下的方式, 影响范围

      in进入+cid落下+ence表名词→掉下来的概率→发生事件的范围→影响范围

      incident 偶然事件

      in进入+cid落下+ent→掉进来的事件

      occident 西方

      oc使+cid落+ent→使[太阳]落下→西方

    • v.

      coincide 巧合;同时发生

      co共同+in进入+cid落下+e→共同落进

    同义词

    occurrence

    同根词

    词根：incident

    adj.

    incident[光] 入射的；附带的；易发生的，伴随而来的

    incidental附带的；偶然的；容易发生的

    n.

    incident事件，事变；插曲

    incidental附带事件；偶然事件；杂项