An example of incidence is the percentage of people with cancer in a particular area.
- the act, fact, or manner of falling upon or influencing
- the degree or range of occurrence or effect; extent of influence
- Informal an individual or particular occurrence or happening; instance or occasion: several incidences of the disease in our village
- Geom. partial coincidence between two figures, as of a line and a point contained in it
- the falling of a line, or a ray of light, projectile, etc. moving in a line, on a surface
- the direction of such falling
Origin of incidenceMiddle English (North) ; from Old French ; from Late Latin incidentia
- The rate or extent of occurrence or effect: a high incidence of malaria in the tropics.
- Usage Problem The fact or an instance of happening; occurrence: did not expect criticism and was surprised by its incidence.
- Physics a. The arrival of radiation or a projectile at a surface.b. Angle of incidence.
From Middle French incidence, from Medieval Latin incidentia (“a falling upon”), from Latin incidens, present participle of incidere (“to fall upon”), from in (“on”) + cadere (“to fall”).