• synonyms


[dahy-uh-tuh-mey-shuh s]
  1. consisting of or containing diatoms or their fossil remains.
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Origin of diatomaceous

1840–50; < New Latin Diatomace(ae) an order name (see diatom, -aceae) + -ous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for diatomaceous

Historical Examples

  • The shelf-ice is without doubt afloat, if the presence of sea-water and diatomaceous stains on the ice is of any account.

    The Home of the Blizzard

    Douglas Mawson

  • Diatomaceous earth is made up of remains of minute aquatic plants.

  • The animal is in many respects a plant; for the diatomaceous creatures one knows hardly in which kingdom to find their place.

    Modern Skepticism

    C. J. Ellicott

  • Wherever these circumstances coexist, diatomaceous forms will almost invariably be found.

British Dictionary definitions for diatomaceous


  1. of, relating to, consisting of, or containing diatoms or their fossil remains
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012