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endodermis

[en-doh-dur-mis] /ˌɛn doʊˈdɜr mɪs/
noun, Botany
1.
a specialized tissue in the roots and stems of vascular plants, composed of a single layer of modified parenchyma cells forming the inner boundary of the cortex.
Origin
1880-1885
1880-85; endo- + -dermis
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for endodermis
  • The vascular cylinder, or stele, consists of the cells inside the endodermis.
  • As the stele increases in diameter, the cortex, pericycle and endodermis are lost.
British Dictionary definitions for endodermis

endodermis

/ˌɛndəʊˈdɜːmɪs/
noun
1.
(botany) the specialized innermost layer of cortex in roots and some stems, which controls the passage of water and dissolved substances between the cortex and stele
Word Origin
C19: from New Latin, from endo- + Greek derma skin
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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endodermis in Science
endodermis
  (ěn'də-dûr'mĭs)   
The innermost layer of the cortex that forms a sheath around the vascular tissue of roots and some stems. In the roots the endodermis helps regulate the intake of water and minerals into the vascular tissues from the cortex.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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