Dictionary

frustule

noun frus·tule \ˈfrəs-(ˌ)chül, -(ˌ)t(y)ül\

Definition of FRUSTULE

:  the 2-valved siliceous shell of a diatom

Origin of FRUSTULE

French, from Latin frustulum, diminutive of frustum
First Known Use: 1848

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May 24, 2015
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