elastic fiber

n.
  1. Any of the fibers 0.2 to 2 micrometers in diameter containing elastin. They branch and anastomose to form networks and fuse to form fenestrated membranes.yellow fiber
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.