1 frustule | Definition of frustule

frustule

noun
frus·​tule | \ ˈfrÉ™s-(ËŒ)chül How to pronounce frustule (audio) , -(ËŒ)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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More from Merriam-Webster on frustule

Britannica.com: Encyclopedia article about frustule