Capable of being refracted: as, the refractive violet rays.

Of or pertaining to refraction; serving or having power to refract or turn from a direct course.

adjective. Serving or having power to refract, or turn from a direct course; pertaining to refraction

adjective. See Index of refraction, under Index.

adjective. the index of refraction of a substances when the ray passes into it from a vacuum.

adjective. the ratio of the sine of the angle of incidence to the sine of the angle of refraction for a ray passing out of one of the media into the other.

adjective. Describing that which refracts.

adjective. of or relating to or capable of refraction

adjective. capable of changing the direction (of a light or sound wave)