Refractive

Refractive (r?*fr?kt"?v) , adjective

[Compare French réfractif. See Refract.]

Serving or having power to refract, or turn from a direct course; pertaining to refraction; as, refractive surfaces; refractive powers.

Collocations (3)

Refractive index (Optics) , See Index of refraction, under Index.

Absolute refractive index (Optics) , the index of refraction of a substances when the ray passes into it from a vacuum.

Relative refractive index (Optics) , 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.