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[prĭvə-lĭjd, prĭvlĭjd]
n.
  1. An area in the body lacking lymphatic drainage, such as the cornea of the eye, in which rejection of foreign tissue grafts does not occur.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.