In a refractive manner / By means of refraction

Capable of being refracted.

The quality or condition of being refractive.

plural of refractivity

plural of refracting

Relating to refraction.

(physics) The ratio of the speed of light in air or vacuum to that in another medium.

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 refracting telescope