Definition of "refractivity" [refractivity]

• The quality or degree of being refractive. (noun)

Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License

• "The refractivity, however, shows a greater difference; for the admixture of helium and neon in the crude sample lowers the refractivity from 0.9665 for the pure gas to 0.961 or 0.960."
• "Boyle's law revealed themselves, and further, investigations of the effect of pressure on the refractivity of water, the effect of pressure on the resistance of an electric conductor."
• "In other words, the genome regions with the highest refractive index - undoubtedly enhanced by the proteins bound to the repetitive DNA - are concentrated in the interior, followed by the sequences with the next highest level of refractivity, to prevent against the scattering of light."