diatomaceous

adjective

di·​a·​to·​ma·​ceous ˌdī-ə-tə-ˈmā-shəs How to pronounce diatomaceous (audio)
(ˌ)dī-ˌa-tə-
: consisting of or abounding in diatoms or their siliceous remains
diatomaceous silica

Word History

First Known Use

1847, in the meaning defined above

Time Traveler
The first known use of diatomaceous was in 1847

Phrases Containing diatomaceous

Dictionary Entries Near diatomaceous

Diatomaceae

diatomaceous

diatomaceous earth

See More Nearby Entries 

Cite this Entry

“Diatomaceous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diatomaceous. Accessed 30 Nov. 2023.

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Medical Definition

diatomaceous

adjective
di·​a·​to·​ma·​ceous ˌdī-ət-ə-ˈmā-shəs How to pronounce diatomaceous (audio) (ˌ)dī-ˌat- How to pronounce diatomaceous (audio)
: consisting of or abounding in diatoms or their siliceous remains
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