Définition "refraction" dans le dictionnaire Collins English Dictionary & Thesaurus

refraction n

1 (Physics) the change in direction of a propagating wave, such as light or sound, in passing from one medium to another in which it has a different velocity

2 the amount by which a wave is refracted

3 the ability of the eye to refract light

4 the determination of the refractive condition of the eye

5 (Astronomy) the apparent elevation in position of a celestial body resulting from the refraction of light by the earth's atmosphere

angle of refraction n
the angle that a refracted beam of radiation makes with the normal to the surface between two media at the point of refraction

double refraction n
the splitting of a ray of unpolarized light into two unequally refracted rays polarized in mutually perpendicular planes, (Also called) birefringence

index of refraction n another name for → refractive index