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[per-uh-sahy-kuh l] /ˈpɛr əˌsaɪ kəl/
noun, Botany
the outermost cell layer of the stele in a plant, frequently becoming a multilayered zone.
Origin of pericycle
1890-95; < Greek períkyklos. See peri-, cycle Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for pericycle
Historical Examples
  • The number of xylem groups is fairly large and the development of the xylem is from the pericycle towards the centre of the stele.

    A Handbook of Some South Indian Grasses Rai Bahadur K. Ranga Achariyar
British Dictionary definitions for pericycle


a layer of plant tissue beneath the endodermis: surrounds the conducting tissue in roots and certain stems
Derived Forms
pericyclic (ˌpɛrɪˈsaɪklɪk; -ˈsɪk-) adjective
Word Origin
C19: from Greek perikuklos
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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pericycle in Science
A layer of nonvascular tissue that surrounds the vascular tissues in the roots of plants and is in turn surrounded by the endodermis. New lateral roots begin growth from the pericycle.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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