1 infusorial earth | Definition of infusorial earth
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infusorial earth

noun
in·​fu·​so·​ri·​al earth | \ ˈin-fyü-ˈzȯr-Ä“-É™l- How to pronounce infusorial earth (audio) , -ˈsȯr-\

Definition of infusorial earth

: kieselguhr

First Known Use of infusorial earth

1868, in the meaning defined above

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