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An apparatus that is used to measure the size and concentration of particles in a liquid by analysis of light scattered by the liquid.

[Greek nephelē, cloud; see nebh- in Indo-European roots + -meter.]

neph′e·lo·met′ric (-lō-mĕt′rĭk) adj.
neph′e·lom′e·try n.


(Chemistry) chem an instrument for measuring the size or density of particles suspended in a fluid
[C19 (in the sense: an instrument for measuring the cloudiness of the sky): from Greek nephelē cloud + -o- + -meter]
nephelometric adj
ˌnepheˈlometry n


(ˌnɛf əˈlɒm ɪ tər)

an instrument for studying the density of suspended particles in a liquid by measuring the degree to which the suspension scatters light.
[1880–85; nephel- (comb. form representing Greek nephélē cloud; see nebula) + -o- + -meter]
neph`e•lo•met′ric (-ləˈmɛ trɪk) neph`e•lo•met′ri•cal, adj.
neph`e•lo•met′ri•cal•ly, adv.
neph`e•lom′e•try, n.
References in periodicals archive ?
Contract notice: Pa 2018-0-35 - supply of reagents and various materials for the analytical determination of proteins by nephelometry for the biochemistry laboratory of the university hospital 12 de octubre
Complement C3 (A) and C4 (B) levels determined by nephelometry in the serum specimens of systemic lupus erythematosus patients with or without infection (Mann-Whitney U or t-test).
All immune indices, including Ro/SSA and La/SSB antibodies, were measured using enzyme-linked immunosorbent assays, and C3 and C4 were measured with rate nephelometry.
Serum ceruloplasmin can be measured enzymatically, by antibody-dependent assays, by radial immunodiffusion, and by nephelometry.
The authors relied on the proportion of the abnormal light chain to calculate the concentration of the intact monoclonal immunoglobulin based on the total IgG using nephelometry.
Blood sample was taken for hs-CRP at the time of admission and measured using nephelometry after radiological confirmation of stroke.
All samples were analyzed on Sysmex CS2000i (Sysmex Corporation, Japan), photo-optical clot detection; ACL Top (Instrumentation Laboratory Company, USA), nephelometry method; and STA Compact Max (Stago, USA), viscosity-based (mechanical) clot detection.
Antimicrobial properties of cyclodextrin-antiseptics-complexes determined by microplate laser nephelometry and ATP bioluminescence assay.
Sadar, Introduction to Laser Nephelometry, an Alternative to Conventional Particulate Analysis Methods.
Nephelometry was used to determine CRP and the colorimetric method was used to determine levels of the products of lipid peroxidation (LPO) (malondialdehyde (MDA) and 4-hydroxy-alkenals) and levels of the SOD enzyme as an antioxidant.