| nephelite | <chemical> A mineral occuring at Vesuvius, in glassy agonal crystals; also elsewhere, in grayish or greenish masses having a greasy luster, as the variety elaeolite. It is a silicate of aluminia, soda, and potash. Origin: gr. Cloud: cf. F. Nepheline. Cf. Nebula. Source: Websters Dictionary (01 Mar 1998) |
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| nephelodometer | <meteorology> An instrument for reckoning the distances or velocities of clouds. Origin: Gr. A cloud + way. Source: Websters Dictionary (01 Mar 1998) |
| nephelometer | An instrument used in nephelometry. Origin: G. Nephele, cloud, + metron, measure (05 Mar 2000) |
| nephelometric turbidity unit | A measurement unit of the clarity of water, dependent on the amount of suspended matter. (05 Dec 1998) |
| nephelometry | <technique> Any method for estimating the concentration of cells or particles in a suspension by measuring the intensity of scattered light, often at right angles to the incident beam. Light scattering depends upon number, size and surface characteristics of the particles. (18 Nov 1997) |
| nephelometry and turbidimetry | Chemical analysis based on the phenomenon whereby light, passing through a medium with dispersed particles of a different refractive index from that of the medium, is attenuated in intensity by scattering. In turbidimetry, the intensity of light transmitted through the medium, the unscattered light, is measured. In nephelometry, the intensity of the scattered light is measured, usually, but not necessarily, at right angles to the incident light beam. (12 Dec 1998) |
Synonyms : Nephelometry, Turbidimetry and Nephelometry
| nephelometer |
A nephelometer is an instrument for measuring suspended particulates in a liquid. It does so by employing a light beam (source beam) and a light detector set to one side (usually 90°) of the source beam. Particle density is then a function of the light reflected into the detector from the particles. To some extent, how much light reflects for a given density of particules is dependent upon properties of the particles such as their shape, color, and reflectivity. ...
Ãâó: en.wikipedia.org/wiki/Nephelometer
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| nephelometry |
From the Greek
Ãâó: amsglossary.allenpress.com/glossary/browse
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| nephelometer |
(noun) an apparatus for measuring the turbidity of a fluid. It may also be used in estimating the degree of contamination of air by particulate matter
Ãâó: www.orgsites.com/fl/adjuvantdisease/_pgg9.php3
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| nephelometry |
(noun) the utilization of a nephrometer
Ãâó: www.orgsites.com/fl/adjuvantdisease/_pgg9.php3
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| nephelometry |
(NEPH), is used to quantitate antigen by analyzing increases in turbidity, as measured by increasing scatter of laser light. The interaction of specific antibodies in the reagent with the antigen from the sample results in the formation of antigen-antibody complexes which are rendered insoluble by the presence of precipitating reagents. ...
Ãâó: www.hardydiagnostics.com/Glossary-N.html
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| nephel | a whitish mineral consisting of sodium aluminum silicate or potassium aluminum silicate in crystalline form |
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| nephel | an igneous rock consisting of nepheline and pyroxene |
| nephel | a whitish mineral consisting of sodium aluminum silicate or potassium aluminum silicate in crystalline form |
| nephel | a genus of dicotyledonous trees of the family Sapindaceae that are native to Asia and Australia |
| nephel | Malayan tree bearing spiny red fruit |
| nephel | Chinese tree cultivated especially in Philippines and India for its edible fruit |
| nephel | tree of southeastern Asia to Australia grown primarily for its sweet edible fruit resembling litchi nuts |
| nephel | East Indian fruit tree bearing fruit similar to but sweeter than that of the rambutan |
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