angle vs angle of refraction

Other hyponyms of angle include crotch, fork, axil, helix angle, complementary angles, angular distance, plane angle, spherical angle, solid angle, angle of inclination, inclination, inclination, inclination of an orbit, salient angle, interior angle, internal angle, exterior angle, external angle, angle of incidence, incidence angle, angle of reflection, angle of extinction, extinction angle, dogleg, right angle, oblique angle, reflex angle, perigon, round angle, cutting angle, angle of dip, dip, inclination, magnetic dip, magnetic inclination, lead, magnetic declination, magnetic variation, variation, AZ, azimuth, polyhedral angle, face angle, tilt angle, vertical angle, angle of view, view angle, wave angle, dihedral angle, torsion angle.