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 (prō′tə-stēl′, prō′tə-stē′lē)
n. Botany
A stele that forms a solid core of xylem encased by phloem.

pro′to·ste′lic (-stē′lĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈprəʊtəˌstiːl; -ˌstiːlɪ)
(Botany) a simple type of stele with a central core of xylem surrounded by a cylinder of phloem: occurs in most roots and the stems of ferns, etc
ˌprotoˈstelic adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈproʊ təˌstil, -ˌsti li)

the solid stele of most plant roots, having a central core of xylem enclosed by phloem.
pro`to•ste′lic, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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