normal human plasma

n.
  1. Sterile plasma obtained by pooling the liquid portion of whole blood to which has been added a solution of potassium or sodium citrate, or both, from eight or more healthy adult humans and by exposing it to ultraviolet light to destroy bacterial and viral contaminants.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.