diatomaceous-earth

diatomaceous earth

noun
a fine siliceous earth composed chiefly of the cell walls of diatoms: used in filtration, as an abrasive, etc.
Also called diatomite [dahy-at-uh-mahyt] , kieselguhr.


Origin:
1880–85

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To diatomaceous-earth
Collins
World English Dictionary
diatomaceous earth
 
n
Also called: kieselguhr an unconsolidated form of diatomite

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Medical Dictionary

diatomaceous earth di·a·to·ma·ceous earth (dī'ə-tə-mā'shəs, dī-āt'ə-)
n.
A powder made of the desiccated shells of diatoms, used as a filtering agent, adsorbent, and abrasive in many chemical operations.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature