Share this entry
kieselguhr Syllabification: kie·sel·guhr
Pronunciation: /ˈkēzəlɡər/

Definition of kieselguhr in English:


A form of diatomaceous earth used in various manufacturing and laboratory processes, chiefly as a filter, filler, or insulator.
Example sentences
  • Fiberized asbestos or ‘magnesia’ is a component of many insulating compositions which may also contain clay, kieselguhr, fossil meal, flax, hemp or jute waste and other materials.
  • Conventional beer filters are made of either densely packed fibres or a dusty material called kieselguhr, which consists of fossilised hard-walled algae called diatoms.


Late 19th century: from German, from Kiesel 'gravel' + dialect Guhr (literally 'yeast') used to denote a loose earthy deposit, found in the cavities of rocks.

Definition of kieselguhr in:
Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Subscribe to remove ads and access premium resources