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kieselguhr

American  
[kee-zuhl-goor] / ˈki zəlˌgʊər /

kieselguhr British  
/ ˈkiːzəlˌɡʊə /

noun

  1. an unconsolidated form of diatomite

"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

Etymology

Origin of kieselguhr

1870–75; < German, equivalent to Kiesel flint + Gu ( h ) r earthy deposit

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The breakthrough came when he mixed nitroglycerin with the inert mineral powder kieselguhr, creating the much more stable dynamite.

From BBC

This was first done by the famous Nobel, who mixed it with a fine earth known as kieselguhr, whereby its sensitiveness was much decreased.

From Project Gutenberg

This name was originally applied to his mixture of nitroglycerin with kieselguhr, but now includes also other mechanical mixtures or chemical compounds which develop a high explosive force as compared with gunpowder.

From Project Gutenberg

Among the porous substances used is kieselguhr, a silicious earth which consists chiefly of the skeletons of various species of diatoms.

From Project Gutenberg

Cuprous chloride is used as a solution in strong hydrochloric acid mixed with ferric chloride, and similarly absorbed in kieselguhr.

From Project Gutenberg