noun Botany.
the outermost cell layer of the stele in a plant, frequently becoming a multilayered zone.

1890–95; < Greek períkyklos. See peri-, cycle Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
pericycle (ˈpɛrɪˌsaɪkəl)
a layer of plant tissue beneath the endodermis: surrounds the conducting tissue in roots and certain stems
[C19: from Greek perikuklos]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
pericycle   (pěr'ĭ-sī'kəl)  Pronunciation Key 
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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Example sentences for pericycle
Sclerenchymatous cells mainly occur in hypodermis, pericycle, secondary xylem and phloem.
The outer part, known as the pericycle, surrounds the actual vascular tissue.
As the stele increases in diameter, the cortex, pericycle and endodermis are lost.
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