the siliceous cell wall of a diatom.
Origin of frustule
< Late Latin frustulum,
diminutive of frustum frustum
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for frustule
Historical Examples of frustule
British Dictionary definitions for frustule
botany the hard siliceous cell wall of a diatom
Word Origin for frustule
C19: from French, from Late Latin frustulum a small piece, from frustum a bit
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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The silica-rich cell wall of a diatom. Frustules are divided into two halves, and the intricate patterns of depressions and projections on each half help to identify individual diatom species.
The American Heritage® Science Dictionary
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