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[German Kieselguhr, obsolete spelling of Kieselgur : Kiesel, pebble (from Middle High German kisel, from Old High German kisil, from Germanic *kisilaz : Germanic *kis-, gravel; probably akin to Lithuanian žiezdra, grain of sand + Germanic *-ilaz, diminutive suffix) + Gur, Guhr, ferment, earthy deposit from water (from gären, to ferment, blend of Middle High German jësan, from Old High German Middle High German *jern, to cause to ferment, from Old High German jerian; see yes- in Indo-European roots).]
(Geological Science) an unconsolidated form of diatomite
[C19: from German Kieselgur, from Kiesel flint, pebble + Gur loose earthy deposit]
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|Noun||1.||kieselguhr - a light soil consisting of siliceous diatom remains and often used as a filtering material|
filter - device that removes something from whatever passes through it