Angle of incidence Meaning, Definition & Usage

  1. noun the angle that a line makes with a line perpendicular to the surface at the point of incidence
    incidence angle.

WordNet


Definitions
  1. the angle which a ray of light, or the line of incidence of a body, falling on any surface, makes with a perpendicular to that surface; also formerly, the complement of this angle.

Webster 1913