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Related to nephelometer: nephelometry


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.
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.


(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
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(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.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
Afterward, clean supernatant liquid was drawn from a depth of 1.0 cm and its turbidity in nephelometric turbidity unit (NTU) was measured using a digital nephelometer (Digital Nephelometer model, Bellstone Hitech International).
Technician tasks include nephelometer calibration gas checks (performed with C[O.sub.2] and filtered air) to verify instrument calibration (Anderson and Ogren 1998), impactor cleaning, filter changes for the light absorption instruments, and replenishing the operating fluid for number concentration instruments.
IgG subclass measurements were performed by BSIN using the Siemens BNII Nephelometer and, in a subset, also by SIN using the Siemens BN ProSpec Nephelometer.
The agency reads particulate levels with a device called a nephelometer, which gauges the dimming effect of pollution on sunlight.
The readings from a nephelometer are at best an estimate, and from comparison studies of factory-calibrated nephelometers with co-located gravimetric instruments, usually an overestimate of mass.
The turbidity of the sample is analyzed by using Nephlo turbidity meter.set the Nephelometer to '0' and '100' readings using double distilled water '100' NTU standard.
Last summer, Dalhousie University's Graydon Snider was on the roof of a half-built office building in Bangladesh setting up a nephelometer --an air sampler device--to measure the concentration of suspended particulates in the thick, grimy air.
Arnott, "Toward an ideal integrating nephelometer", Optics Letters, vol.
One of the important devices for a winery laboratory is a nephelometer. This device measures turbidity of a liquid.
Test and control strains were seeded in Mueller-Hinton agar supplemented with 0.5% defibrinated sheep blood and 0.1% esculin (Soriano, Fernandez Roblas, Calvo, & Garcia Calvo, 1998), previously adjusted to the 0.5 McFarland nephelometer tube.