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单词 incidence
释义 incidence
 /in"si deuhns/,  n.  
  1. the rate or range of occurrence or influence of something, esp. of something unwanted: the high incidence of heart disease in men over 40.
  2. a falling upon, affecting, or befalling; occurrence: The incidence of murder that Sunday afternoon shocked the sleepy village.
  3.  Optics  ,  Physics.  
   a. the striking of a ray of light, beam of electrons, etc., on a surface, or the direction of striking.
   b. See angle of incidence (def. 1).
  4. the fact or the manner of being incident.
  5.  Geom.   partial coincidence of two figures, as of a line and a plane containing it.
 [1375-1425; late ME < LL incidentia. See INCIDENT, -ENCE]
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更新时间:2024/11/12 4:10:03