incidence angle

/ˌɪnsəd(ə)ns ˌæŋgəl/

Definitions of incidence angle

1. noun

   the angle that a line makes with a line perpendicular to the surface at the point of incidence
   synonyms: angle of incidence

   types:

   angle of attack

   the acute angle between the direction of the undisturbed relative wind and the chord of an airfoil

   critical angle

   the smallest angle of incidence for which light is totally reflected

   type of:

   angle

   the space between two lines or planes that intersect; the inclination of one line to another; measured in degrees or radians