Search Result for "incidence angle":
Wordnet 3.0

NOUN (1)

1. the angle that a line makes with a line perpendicular to the surface at the point of incidence;
[syn: angle of incidence, incidence angle]



WordNet (r) 3.0 (2006):

incidence angle
    n 1: the angle that a line makes with a line perpendicular to
         the surface at the point of incidence [syn: angle of
         incidence, incidence angle]