kieselguhr

Nitroglycerine, when absorbed in a porous earth called 'Kieselguhr', is called dynamite.
The New Gresham Encyclopedia|Various
The best substitute for "kieselguhr" is ashes of bog-head coal.
Torpedoes and Torpedo Warfare|C. W. Sleeman
The correct amount of kieselguhr to be added can only be ascertained by experience, and varies with different samples of yeast.
Alcoholic Fermentation|Arthur Harden
Lithofracteur, for instance, consists of 50% nitroglycerin and a mixture of prepared sawdust, kieselguhr and barium nitrate.
Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 9|Various

Kieselguhr is a very powerful adsorbent, and only a little will do much good; it is, however, hardly sufficient alone.
Animal Proteins|Hugh Garner Bennett

British Dictionary definitions for kieselguhr

kieselguhr

/ (ˈkiːzəlˌɡʊə) /

noun

an unconsolidated form of diatomite

Word Origin for kieselguhr

C19: from German Kieselgur, from Kiesel flint, pebble + Gur loose earthy deposit

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