تلفظ بین المللی : /pəɹɪfɹˈastɪkli/ تلفظ : [p3rIfr'aastIkli]
English
With circumlocution.
Serving or having power to refract, or turn from a direct course; pertaining to refraction; as, refractive surfaces; refractive powers. Refractive index. (Opt.) See Index of refraction, under Index. -- Absolute refractive index (Opt.), the index of refraction of a substances when the ray passes into it from a vacuum. -- Relative refractive index (of two media) (Opt.), th...
