incidence

1. n. A falling on or upon; an incident; an event. Source: opted

2. n. The direction in which a body, or a ray of light or heat, falls on any surface. Source: opted

3. n. the relative frequency of occurrence of something Source: wordnet

4. n. the striking of a light beam on a surface Source: wordnet

5. The direction in which a body, or a ray of light or heat, fallson any surface.In equal incidences there is a considerable inequality ofrefractions. Sir I. Newton.Angle of incidence, the angle which a ray of light, or the line ofincidence of a body, falling on any surface, makes with aperpendicular to that surface; also formerly, the complement of thisangle.-- Line of incidence, the line in the direction of which a surfaceis struck by a body, ray of light, and the like. Source: adambom

6. n:100 n. the relative frequency of occurrence of something n. the striking of a light beam on a surface Source: ecdict

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