refractivity


Also found in: Thesaurus, Medical, Financial, Acronyms, Encyclopedia, Wikipedia.
click for a larger image
refraction
refraction of light
i: angle of incidence
r: angle of refraction

re·frac·tion

 (rĭ-frăk′shən)
n.
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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations

re·frac·tiv·i·ty

n. refractividad, habilidad de refractar.
English-Spanish Medical Dictionary © Farlex 2012
References in periodicals archive ?
where N is the atmospheric refractivity, n is the refractive index of the atmosphere, T is the temperature (K), P is the atmospheric pressure (hpa) and e is the water vapour pressure (hpa) [11,12]: The water vapour pressure e is given by (2), where H (%) is the relative humidity and t ([degrees]C) is the air temperature [11]:
The key point of this article is introducing the quality control scheme for the GPS RO refractivity data in the AREM-B4DVar system to evaluate the role of GPS RO refractivity data assimilation in regional numerical weather predictions and, through actual rainstorm cases and batch experiments during the flood season, to explore an effective method for improving the forecasting ability of regional numerical forecast models by using GPS RO refractivity data.
The horizontally inhomogeneous refractivity index n is considered here, shown as n(x, z).
Some physicochemical properties (molecular weight, molecular volume, logP, molar refractivity, topological polar surface area, accessible solvent area) of compounds 1-5 were also computed.
In the properties of Malathion, it will be note the molar refractivity, which was the measure of the total polarizability of one mole of substance, the molar volume and the density.
and Pathak, K.N: 2011, Change in refractivity of the atmosphere and large variation in TEC associated with some earthquakes, observed from GPS receiver.
Binding strength indicated worthy correlation with various physicochemical parameters like hydrophobic surface area (Vsurf), EHOMO, ELUMO, log P and molar refractivity (MR).
where [[sigma].sub.n] is the refractivity uncertainty transmitted by the ground system (unitless), [h.sub.0] the tropospheric scale height transmitted as well, [theta] the elevation angle of the satellite, and [DELTA]h the height of the aircraft above the GBAS reference point (in meters).
At higher concentrations (40 [micro]g/ml), however, T1a supernatant significantly increase the refractivity of the cell nucleus [Figure 1]e.