- refractive index,
- refractive keratotomy,
- refractory anemia
Origin of refractivity
Examples from the Web for refractivity
In this case small temperature changes alter the refractivity of the liquid without appreciably affecting the quartz.
Glasses can now be made differing considerably both in refractivity and dispersive power.
In air and other gases, at ordinary pressures, the dispersion is very small, because the refractivity is small.