n.
The outer layers of tissue of woody roots and stems, consisting of the cork cambium and the tissues produced by it, such as cork.
peridermal per'i·der'mal or per'i·der'mic adj.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
