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refraction of light
i: angle of incidence
r: angle of refraction


1. The deflection of a wave, such as a light or sound wave, when it passes obliquely from one medium into another having a different index of refraction.
2. Astronomy The apparent change in position of a celestial object caused by the bending of light rays as they enter Earth's atmosphere.
3. Medicine
a. The ability of the eye to bend light so that an image is focused on the retina.
b. Determination of this ability in an eye.

re·frac′tion·al, re·frac′tive adj.
re·frac′tive·ly adv.
re·frac′tive·ness, re′frac·tiv′i·ty (rē′frăk-tĭv′ĭ-tē) n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.refractivity - the physical property of a medium as determined by its index of refraction
bending, deflexion, deflection - the property of being bent or deflected


n. refractividad, habilidad de refractar.
References in periodicals archive ?
Adaptations' refractivity is highlighted in Solas's release of three distinct cuts of Cecilia, as well as in the invective criticism that the film received upon its release.
While for the chromatogram F, in the characteristic equation was present the molar volume (MV) and molar refractivity (MR), due to these data were available for substances analyzed in this chromatogram ( Table 5).
2014, Modification in atmospheric refractivity and GPS based TEC as earthquake precursors.
Various physicochemical parameters like hydrophobic surface area (Vsurf), EHOMO, ELUMO, log P, molar refractivity (MR) and formation constant (Kf) showed that SB could be studied further as anticancer drugs.
Using the RFC technique to estimate atmospheric refractivity is a complex nonlinear and ill-posed optimization problem.
where X1: LUMO-HOMO energy (au), X2: Rotatable bonds, X3: Vertex distance/equality, X4: Vertex distance/magnitude, X5: Kappa-1, X6: weight %C, XI: Molecular refractivity, X8: Atomic composition (total), X9: Dipole moment (au), X10: S_sN[H.
1) can be represented on a design matrix A, that can be related to each unknown wet refractivity cell represented by a vector x and the slant wet path delay observable y or [L.
Refractivity profile can then be used to derive profiles of atmospheric density from the troposphere to the mesosphere.
The first recommendation concurred with the recommendation in the National Research Council (NRC) Decadal Survey for Earth Science and Applications from Space: National Imperatives for the Next Decade and Beyond, which called for a satellite with benchmark instruments called the Climate Absolute Radiance and Refractivity Observatory (CLARREO).
The linear relationship between refractivity measurements on a reference scale and osmolality was determined.
Here N is the refractivity which is a practical quantity often used in preference to 'n'.