• synonyms


[per-uh-sahy-kuh l]
noun Botany.
  1. the outermost cell layer of the stele in a plant, frequently becoming a multilayered zone.
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Origin of pericycle

From the Greek word períkyklos, dating back to 1890–95. See peri-, cycle
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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


  1. a layer of plant tissue beneath the endodermis: surrounds the conducting tissue in roots and certain stems
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Derived Formspericyclic (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

pericycle in Science


  1. 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.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.