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xy•lem



Pronunciation: (zī'lum, -lem), [key]
n. Bot.
a compound tissue in vascular plants that helps provide support and that conducts water and nutrients upward from the roots, consisting of tracheids, vessels, parenchyma cells, and woody fibers.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

xylanxylem ray
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