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单词 incidence
释义

incidence

[ in-si-duhns ]
/ ˈɪn sɪ dəns /
SEE SYNONYMS FOR incidence ON THESAURUS.COM

noun

the rate or range of occurrence or influence of something, especially of something unwanted: the high incidence of heart disease in men over 40.
a falling upon, affecting, or befalling; occurrence: The incidence of murder that Sunday afternoon shocked the sleepy village.
Optics, Physics.
  1. the striking of a ray of light, beam of electrons, etc., on a surface, or the direction of striking.
  2. angle of incidence (def. 1).
the fact or the manner of being incident.
Geometry. partial coincidence of two figures, as of a line and a plane containing it.

Origin of incidence

First recorded in 1375–1425; late Middle English, from Late Latin incidentia. See incident, -ence

WORDS THAT MAY BE CONFUSED WITH incidence

incidence , incidents, incidental

Words nearby incidence

Inchon, in chorus, inch plant, inch-pound, inchworm, incidence, incident, incidental, incidentally, incidental music, incidentaloma
Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for incidence

British Dictionary definitions for incidence

incidence
/ (ˈɪnsɪdəns) /

noun

degree, extent, or frequency of occurrence; amounta high incidence of death from pneumonia
the act or manner of impinging on or affecting by proximity or influence
physics the arrival of a beam of light or particles at a surfaceSee also angle of incidence
geometry the partial coincidence of two configurations, such as a point that lies on a circle
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for incidence

incidence
[ ĭnsĭ-dəns ]

n.

The extent or rate of occurrence, especially the number of new cases of a disease in a population over a period of time.
The arrival of radiation or a projectile at a surface.

Other words from incidence

inci•dent adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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