See Also: Incidence(medicine)
Incidence(health)
incidence(dictionary)
incidence(dictionary)
angle of incidence(medicine)
incidence density(medicine)
incidence rate(medicine)
plane of incidence(medicine)
Angle of incidence(health)

incidence (iou)



incidence noun. LME.
[Old & mod. French, from incident, or medieval Latin incidentia, from incident-: see INCIDENT adjective, -ENCE.]
A casual or subordinate occurrence or matter. LME-M17.
a. Physics. The falling of a line, or of something (esp. light) moving in a line, upon a surface. E17.
angle of incidence the angle between a ray etc. incident on a surface and the normal to the surface at the point of incidence.
R. W. Ditchburn The direction of reflection is on the side of the normal opposite to the direction of incidence. F. Hoyle The normal rate of incidence of cosmic rays on the Earth.
b. gen. The fact or action of falling upon or affecting something. M17.
The range or scope of a thing; the extent of a thing's influence; esp. the rate or frequency of occurrence of a phenomenon among a group of people. E19.
D. W. Goodwin Studies have shown a high incidence of alcoholism in a parent of women alcoholics. N. Symington He..noted the frequent incidence of religious imagery in their utterances. A. Briggs Battles in Parliament about the incidence of taxation on different sections of the community.