Incident

in′si-dent, adj. falling upon: liable to occur: naturally belonging to anything, or following therefrom.— n. that which happens: an event: a subordinate action: an episode.— n. In′cidence , the manner of falling: bearing or onus , as of a tax that falls unequally: the falling of a ray of heat, light, . on a body: ( geom. ) the falling of a point on a line, or a line on a plane.— adj. Incident′al , occurring as a result, concomitant: occasional, casual.— adv. Incident′ally .— n. Incident′alne .— Angle of incidence , the angle at which a ray of light or radiant heat falls upon a surface. [Fr.,—L. incĭdens — in , on, cadĕre , to fall.]