frustule

noun
frus·​tule | \ ˈfrəs-(ˌ)chül How to pronounce frustule (audio) , -(ˌ)t(y)ül \

Definition of frustule

: the 2-valved siliceous shell of a diatom

First Known Use of frustule

1848, in the meaning defined above

History and Etymology for frustule

French, from Latin frustulum, diminutive of frustum

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The first known use of frustule was in 1848

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Dictionary Entries Near frustule

frustulation

frustule

frustulum

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Cite this Entry

“Frustule.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/frustule. Accessed 19 Oct. 2021.

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Britannica.com: Encyclopedia article about frustule

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