kieselguhr

noun

kie·​sel·​guhr ˈkē-zəl-ˌgu̇r How to pronounce kieselguhr (audio)
: loose or porous diatomite

Word History

Etymology

German Kieselgur

First Known Use

1875, in the meaning defined above

Time Traveler
The first known use of kieselguhr was in 1875

Dictionary Entries Near kieselguhr

Cite this Entry

“Kieselguhr.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/kieselguhr. Accessed 21 Dec. 2024.

More from Merriam-Webster on kieselguhr

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!