(physics) The turning or bending of any wave, such as a light or sound wave, when it passes from one medium into another of different optical density.

simple past tense and past participle of refract

Turned out of its straight course. / (biology) Bent back at an acute angle.

plural of refraction

That refracts; causing or relating to refraction.

Third-person singular simple present indicative form of refract

plural of refracting telescope

A telescope which produces a magnified image by refracting light through a series of lenses housed in a tube, with a light-gathering objective lens at one end and an eyepiece at the other.

(optics) The angle between the perpendicular and a ray refracted at a surface

plural of angle of refraction