Meaning of incidence

in•ci•dence

Pronunciation: (in'si-duns), [key]
— 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.
    1. the striking of a ray of light, beam of electrons, etc., on a surface, or the direction of striking.
    2. Seeangle of incidence(def. 1).
  3. the fact or the manner of being incident.
  4. partial coincidence of two figures, as of a line and a plane containing it.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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