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frustule

[fruhs-chool] /ˈfrʌs tʃul/
noun, Botany
1.
the siliceous cell wall of a diatom.
Origin
1855-1860
1855-60; < French < Late Latin frustulum, diminutive of frustum frustum
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for frustule
  • Its frustule is a form of armor that can protect the diatoms from predators.
  • Each of these side buds develops into a tiny, cigar-shaped larva called a frustule.
  • All non-diatoms were counted and identified during this step as well as total viable diatom frustule number.
  • It nay often be overlooked because of its extremely delicate frustule, which is almost invisible even under phase optics.
British Dictionary definitions for frustule

frustule

/ˈfrʌstjuːl/
noun
1.
(botany) the hard siliceous cell wall of a diatom
Word Origin
C19: from French, from Late Latin frustulum a small piece, from frustum a bit
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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frustule in Science
frustule
  (frŭs'chl)   
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
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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