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definitions

subendothelial layer

[sŭb′ĕn-dō-thē′lē-əl]
n.
  1. The thin layer of connective tissue lying between the endothelium and elastic lamina in the intima of blood vessels.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.