the angle that a line makes with a line perpendicular to the surface at the point of incidence
the relative frequency of occurrence of something
the striking of a light beam on a surface
the space between two lines or planes that intersect; the inclination of one line to another; measured in degrees or radians
a biased way of looking at or presenting something
a member of a Germanic people who conquered England and merged with the Saxons and Jutes to become Anglo-Saxons
