diatomaceous earth

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diatomaceous earth

n.
A light-colored porous rock composed of the shells of diatoms.
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.

diatomaceous earth

n
1. (Geological Science) an unconsolidated form of diatomite. Also called: kieselguhr
2. (Minerals) an unconsolidated form of diatomite. Also called: kieselguhr
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

di′atoma′ceous earth′


n.
a fine siliceous earth composed chiefly of the cell walls of diatoms and used in filtration. Also called di•at•o•mite (daɪˈæt əˌmaɪt)
[1880–85]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.diatomaceous earth - a light soil consisting of siliceous diatom remains and often used as a filtering materialdiatomaceous earth - a light soil consisting of siliceous diatom remains and often used as a filtering material
filter - device that removes something from whatever passes through it
earth, ground - the loose soft material that makes up a large part of the land surface; "they dug into the earth outside the church"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
The culture broth was harvested after 14 days, mixed with celite, and filtered off under pressure.
The extration of aflatoxins was performed according to the method described by SOARES & RODRIGUEZ-AMAYA (1989) using methanol, potassium chloride, copper sulfate, celite and chloroform.
It has been well documented that sulfate resistance is directly tied to the amount of celite in the cement.
In this notation, alite (tricalcium silicate) [(CaO)3Si[O.sub.2]], belite (dicalcium silicate) [[(CaO).sub.2]Si[O.sub.2]], celite (tricalcium aluminate) [[Ca.sub.3][Al.sub.2][O.sub.6] = 3CaO x [Al.sub.2][O.sub.3]], and brownmillerite (tetracalcium aluminoferrite) [[Ca.sub.4][Al.sub.2][Fe.sub.2][O.sub.10] = 4CaO x [Al.sub.2][O.sub.3] x [Fe.sup.2][O.sub.3]] are represented by [C.sub.3]S, [C.sub.2]S, [C.sub.3]A, and [C.sub.3]AF, respectively.
Three support materials were used in the study: Celite 545, Sephadex G-25, and chitosan.
Celite 545 and florisil (100-200 mesh) used for accelerated solvent extraction (ASE 200[R], Dionex Corporation) were obtained from Merck (Darmstadt, Germany) and from Sigma-Aldrich (Steinheim, Germany), respectively.
All diets contained 1.0% celite as an indigestible marker to increase the concentrations of acid-insoluble ash (AIA) for the determination of nutrient and energy utilization in the diets.
After the contents were decomposed by enzymes through a filtering crucible with earned constant weight which includes celite, leftover sediments in the crucible were vacuum-filtered, washed in the order of 100 mL of water, 10 mL of 95% ethanol, and 10 mL of acetone, dried in a 70[degrees]C vacuum oven overnight, moved to a desiccator to cool for 15 min, and weighed.
For this reason, more and more manufacturers are relying on Johns-Manville Celite diatomite filter aids to polish their products to a brilliant clarity.
Activation factors, such as celite (diatomaceous earth), kaolin, or TF, can be used for reducing lag time and may also increase sensitivity and minimize analytic variation.