Refractive /(r?*fr?kt"?v)/

Re·fract·ive

Refractive

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

Phrases & Compounds

Refractive index
See Index of refraction, under Index.
Absolute refractive index
the index of refraction of a substances when the ray passes into it from a vacuum.
Relative refractive index
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.