Friday, October 23, 2009

Xx: Xylem

n.
The supporting and water-conducting tissue of vascular plants, consisting primarily of tracheids and vessels; woody tissue.

[German, from Greek xulon, wood.]

The American Heritage® Dictionary of the English Language, Fourth Edition copyright ©2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.


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