Definitions for Incidenceˈɪn sɪ dəns
Random House Webster's College Dictionary
in•ci•denceˈɪn sɪ dəns(n.)
the rate or range of occurrence or influence of something.
the striking of a ray of light, beam of electrons, etc., on a surface, or the direction of striking.
Category: Optics, Physics
Ref: angle of incidence (def. 1). 1
Origin of incidence:
incidence, relative incidence(noun)
the relative frequency of occurrence of something
the striking of a light beam on a surface
"he measured the angle of incidence of the reflected light"
The act of something happening; occurrence
The extent, or the relative frequency of something happening
The striking of radiation or a projectile upon a surface
A measure of the risk that a person develops a new condition within a specified period of time, usually a year.
a falling on or upon; an incident; an event
the direction in which a body, or a ray of light or heat, falls on any surface
U.S. National Library of Medicine
The number of new cases of a given disease during a given period in a specified population. It also is used for the rate at which new events occur in a defined population. It is differentiated from PREVALENCE, which refers to all cases, new or old, in the population at a given time.