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A stele in which the vascular tissue is in the form of a cylinder surrounding the pith, as in the stems of most ferns and other seedless vascular plants.
si·phon′o·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.
(Botany) botany the cylinder of conducting tissue surrounding a central core of pith in certain stems. See also stele3
[C19: from siphon + stele]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
si•phon•o•stele(saɪˈfɒn əˌstil, ˈsaɪ fə nəˌstil)
Bot. a stele containing a hollow tube of vascular tissue surrounding a pith.
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