plural -s
: a loose earthy deposit from water occurring in the cavities of rocks, being mostly white but sometimes red or yellow, and consisting of a varying mixture of clay or ocher
[by shortening] : kieselguhr

Word History


German guhr, gur; akin to Middle High German gern to ferment, Old High German jesan

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Dictionary Entries Near guhr

Cite this Entry

“Guhr.” Dictionary, Merriam-Webster, Accessed 25 May. 2024.

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