from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A fine, powdered diatomaceous earth used in industry as a filler, a filtering agent, an absorbent, a clarifier, and an insulator.

from The Century Dictionary.

  • noun Diatomaceous earth; infusorial earth.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun geology A fine, powdery earth formed from the skeletons of diatoms

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a light soil consisting of siliceous diatom remains and often used as a filtering material


Sorry, no etymologies found.


  • These materials (such as diatomite, pumice, expanded clay and shale, etc.) may be used in place of perlite without losing any of the benefits that perlite provides.


  • Sediment from the years when the drill site was covered by open ocean are made of diatoms, tiny marine plankton ( "diatomite").


  • Such layers, or beds, of diatoms are called diatomaceous earth, or diatomite.


  • The United States produces much of its own diatomite material.


  • Similarly, diatomite is used to filter impurities from water to produce drinkable (potable) water in public water systems.


  • Of these states, California and Nevada produce the largest amount of diatomite.


  • Significant producers of diatomite worldwide include France, China, Denmark, Russia, and Algeria.


  • In this situation, the diatomite removes bacteria and protozoa.


  • Some lightweight mineral and rock materials, such as vermiculite, diatomite and perlite are similar to micas and can be used in place of mica.


  • The oldest use of diatomite is as a very mild abrasive and for this purpose has been used in toothpaste and metal polishes.



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